PRODUCT SAFETY MARKINGS: Yamaha electronic
products may have either labels similar to the graphics
shown below or molded/stamped facsimiles of these
graphics on the enclosure. The explanation of these graphics appears on this page. Please observe all cautions indicated on this page and those indicated in the safety instruction section.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
See bottom of Keyboard enclosure for graphic symbol markings
The exclamation point within the equilateral triangle is intended to alert the
user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
ENVIRONMENTAL ISSUES: Yamaha strives to produce products that are both user safe and environmentally
friendly. We sincerely believe that our products and the
production methods used to produce them, meet these
goals. In keeping with both the letter and the spirit of the
law, we want you to be aware of the following:
Battery Notice: This product MAY contain a small nonrechargable battery which (if applicable) is soldered in
place. The average life span of this type of battery is approximately five years. When replacement becomes necessary, contact a qualified service representative to perform the replacement.
Warning: Do not attempt to recharge, disassemble, or
incinerate this type of battery. Keep all batteries away
from children. Dispose of used batteries promptly and as
regulated by applicable laws. Note: In some areas, the
servicer is required by law to return the defective parts.
However, you do have the option of having the servicer
dispose of these parts for you.
Disposal Notice: Should this product become damaged
beyond repair, or for some reason its useful life is considered to be at an end, please observe all local, state, and
federal regulations that relate to the disposal of products
that contain lead, batteries, plastics, etc.
The lightning flash with arrowhead
symbol, within the equilateral triangle,
is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that
may be of sufficient magnitude to constitute a risk of electrical shock.
IMPORTANT NOTICE: All Yamaha electronic products are tested and approved by an independent safety
testing laboratory in order that you may be sure that when
it is properly installed and used in its normal and customary manner, all foreseeable risks have been eliminated.
DO NOT modify this unit or commission others to do so
unless specifically authorized by Yamaha. Product performance and/or safety standards may be diminished.
Claims filed under the expressed warranty may be denied
if the unit is/has been modified. Implied warranties may
also be affected.
SPECIFICATIONS SUBJECT TO CHANGE: The
information contained in this manual is believed to be
correct at the time of printing. However, Yamaha reserves
the right to change or modify any of the specifications
without notice or obligation to update existing units.
NOTICE: Service charges incurred due to lack of knowledge relating to how a function or effect works (when the
unit is operating as designed) are not covered by the
manufacturer’s warranty, and are therefore the owners
responsibility. Please study this manual carefully and consult your dealer before requesting service.
NAME PLATE LOCATION: The graphic below indicates the location of the name plate. The model number,
serial number, power requirements, etc., are located on
this plate. You should record the model number, serial
number, and the date of purchase in the spaces provided
below and retain this manual as a permanent record of
your purchase.
CLP-411CLP-511
92-469 1
Model _____________________________________
Serial No. __________________________________
Purchase Date ______________________________
CLP-411
CLP-511
Owner’s Manual
Bedienungsanleitung
English
Deutsch
Mode d’emploi
Manual de instrucciones
Français
Español
Introduction
Thank you for choosing a Yamaha CLP-411/511 Clavinova. Your Clavinova is a fine musical instrument
that employs advanced Yamaha music technology. With the proper care, your Clavinova will give you many
years of musical pleasure.
● Yamaha’s AWM (Advanced Wave Memory) tone
generator system offers rich, realistic voices. Both
models feature stereo sampling of the piano
voices for unmatched realism and expressive
power.
● Piano-like touch response — adjustable in 4
stages — provides extensive expressive control
and outstanding playability.
● Dual mode allows 2 voices to be played simultaneously.
● Split mode (CLP-511) allows different voices to be
played by the left and right hands.
● Unique Clavinova Tone voice provides a fresh
sound for new musical expression.
● Metronome feature with variable tempo facilitates
practice.
● Digital recorder lets you record and play back
anything you play on the keyboard (up to approximately 4,200 notes).
● MIDI compatibility and a range of MIDI functions
make the Clavinova useful in a range of advanced
MIDI music systems.
● Built-in computer interface for direct connection to
personal computers running advanced music
software.
In order to make the most of your Clavinova’s performance potential and features, we urge you to read
this Owner’s Manual thoroughly, and keep it in a safe place for later reference.
Taking Care Of Your Clavinova
Your Clavinova is a fine musical instrument, and deserves the most careful treatment. Observe the fol-
lowing points and your Clavinova will sound and look great for many years.
1 Never open the case and touch or tamper with the
internal circuitry.
2 Always turn the POWER switch OFF after use,
and close the key cover to protect the keyboard.
3 Clean the cabinet and keys of your Clavinova only
with a clean, slightly damp cloth. A neutral
cleanser may be used if desired. Never use
abrasive cleansers, waxes, solvents or chemical
dust cloths since these can dull or damage the
finish.
4 Never place any vinyl products on your Clavinova.
Contact with vinyl can cause irreversible damage
to the finish.
5 Install your Clavinova in a place that is away from
direct sunlight, excessive humidity or heat.
6 Never apply excessive force to the controls,
connectors or other parts of your Clavinova, and
avoid scratching or bumping it with hard objects.
7 Make sure that your local AC mains voltage
matches the voltage specified on the name plate
on the bottom panel. In some areas a voltage
selector may be provided on the bottom panel of
the main keyboard unit near the power cord.
Make sure that the voltage selector is set for the
voltage in your area. The voltage selector is set at
240V when the unit is initially shipped. To change
the setting use a “minus” screwdriver to rotate the
selector dial so that the correct voltage appears
next to the pointer on the panel.
● Name Plate Location
The CLP-411/511 name plate is located on the
bottom panel.
Contents
The Control Panel ..........................................................2
Press the [POWER] switch once to turn the power ON, a second time
to turn the power OFF. When the power is initially turned ON, a voice
selector LED will light, and the power indicator located below the left end
of the keyboard will light.
RECORDER
START
12
$#
B5 C6
/
STOP
D6 E6 F6 G6 A6 B6 C7
2 [MASTER VOLUME] Control
REC
The [MASTER VOLUME] control adjusts the volume (level) of
sound produced by the Clavinova’s internal stereo sound system. The
[MASTER VOLUME] control also adjusts headphone volume when a
pair of headphones is plugged into the PHONES jack (page 5).
3 [FUNCTION] Button
This button accesses a range of utility functions — including the MIDI
functions — that significantly enhance versatility and playability. See
page 20 for details.
4 [TRANSPOSE] Button
The [TRANSPOSE] button allows access to the Clavinova’s TRANSPOSE function (to shift the pitch of the entire keyboard up or down in
semitone intervals).
5 [SPLIT] Button (CLP-511)
Engages the split mode in the CLP-511, in which different voices can
be played on the left- and right-hand sections of the keyboard. See page 11
for details.
6 [REVERB] Button
The [REVERB] button selects a number of digital reverb effects that
you can use for extra depth and expressive power. See page 12 for details.
7 [EFFECT] Button
This button engages a chorus effect which can give your sound greater
START
STOP
RECORDER
/
#
REC
depth and animation.
8 [TOUCH] Button
The [TOUCH] button makes it easy to adjust the touch response of the
Clavinova to match your playing style. See page 14 for details.
9 Voice Selectors & [VARIATION] Button
The CLP-411 has seven voice selectors and a [VARIATION] button,
and the CLP-511 has nine voice selectors and a [VARIATION] button.
Simply press any of the voice selectors to select the corresponding voice.
The voice selector LED will light to indicate which voice is currently
selected. Press the [VARIATION] button so that its indicator lights to
select a variation of the currently selected voice.
B5 C6
D6 E6 F6 G6 A6 B6 C7
There is also a dual mode in which two voices can be played simultaneously across the full range of the keyboard (see page 10 for details), and
a split mode on the CLP-511 which allows different voices to be played
by the left and right hands (see page 11 for details).
Turns the metronome sound on and off. The [TEMPO/SONG] but-
tons, below, are used to set the tempo of the metronome sound, and the
volume of the metronome sound if used while the [METRONOME]
button is held — page 16.
! [TEMPO/SONG] (–/NO, +/YES) Buttons
These buttons adjust the tempo of the metronome function as well as
the playback tempo of the recorder function. The tempo range is from 32
to 280 beats per minute — page 16. These same buttons are also used to
select a piano song number for playback — page 7. The [TEMPO/SONG] buttons are also used to adjust a range of other parameters (i.e.
their “–/NO” and “+/YES” functions).
@ [DEMO/PIANO SONG] Button
Activates the demo playback mode in which you can select playback of
different demonstration sequences for each of the Clavinova’s voices, and
a range of 30 piano songs. See page 7 for details.
%
Soft pedal
Damper pedal
Sostenuto pedal
● The Music Stand
CLP-511
# RECORDER [START/STOP] and [REC] Buttons
These buttons control the Clavinova’s recorder, letting you record and
play back just about anything you play on the keyboard — up to a maximum of about 4,200 notes. See page 17 for details.
$ RECORDER [1] and [2] Buttons (CLP-511)
The CLP-511 has a 2-track recorder, and these buttons are used to
select the track(s) to be recorded or played back. See page 17 for details.
% Pedals
The soft (left), sostenuto (center) and damper (right) pedals provide a
range of expressive control capabilities similar to the pedal functions on
an acoustic piano. See page 13 for details.
If you will be using sheet music with your
Clavinova, raise the music stand built into its top
panel by lifting the rear edge of the music stand,
then flip down the music stand braces and engage
them with the corresponding recesses.
The music stand can be lowered after slightly
lifting it and folding the two brackets which support it against the back of the stand.
To open the CLP-511/411 key cover lift it just
enough to clear the keys (do not lift excessively)
then slide the cover back into the main unit. To
close the cover slide it forward all the way and then
lower it gently until it closes completely.
Connections
CLP-511CLP-411
34
MIDI
THRU
IN OUT
HOST SELECT TO HOST
PC-2 PC-1
MIDI
Mac
AUX OUT
AUX IN
/
L+R
RL/L+R
RL
12
34
MIDI
IN OUT
HOST SELECT TO HOST
PC-2 PC-1
MIDI
Mac
12
AUX IN
AUX OUT
RLRL/L+R
DOU-10
INOUTTHRU
DOU-10
CLP-511
AUX IN
RL/L+R
AUX OUT
RL/L+R
Stereo System
CLP-511
MIDI
Tone Generator
HOST SELECTTO HOST
PC-2 PC-1
MIDI
Mac
CLP-411
AUX IN
RL
1 AUX IN L and R Jacks (CLP-511: L/L+R and R)
These jacks are intended for use with an external tone generator
module such as the Yamaha DOU-10 Disk Orchestra Unit. The stereo
outputs from the external tone generator module are connected to the
AUX IN L and R jacks, allowing the sound of the tone generator to be
reproduced via the Clavinova’s internal sound system and speakers. A
line-level mono source can be connected to the L/L+R jack on the CLP-
511.
NOTE
• The input signal from the AUX IN jacks is delivered to the AUX OUT jacks,
but is not affected by the Clavinova’s volume control or reverb effect.
2 AUX OUT L/L+R and R Jacks
The AUX OUT L/L+R and R jacks deliver the output of the Clavinova for
connection to an instrument amplifier, mixing console, PA system, or recording equipment. If you will be connecting the Clavinova to a monaural sound
system, use only the L/L+R jack. When a plug is inserted into the L/L+R jack
only , the left- and right-channel signals are combined and delivered via the L/
L+R jack so you don’t lose any of the Clavinova’ s sound.
NOTE
• The AUX OUT jack signal must never be returned to the AUX IN jacks, either
directly or through external equipment.
3 MIDI IN, THRU (CLP-511) and OUT Connectors
The MIDI IN connector receives MIDI data from an external MIDI
device (such as the DOU-10 Disk Orchestra Unit) which can be used to
control the Clavinova. The MIDI THRU connector provided on the CLP511 re-transmits any data received at the MIDI IN connector, allowing
“chaining” of several MIDI instruments or other devices. The MIDI OUT
connector transmits MIDI data generated by the Clavinova (e.g. note and
velocity data produced by playing the Clavinova keyboard).
More details on MIDI are given in “MIDI FUNCTIONS” on page 26.
4 TO HOST Connector & HOST SELECT Switch
This jack and selector switch allow direct connection to a personal
computer for sequencing and other music applications — without the need
Personal Computer
for a separate MIDI interface. See page 30 for details.
● PHONES Jacks
(Bottom Panel)
Two pairs of standard pair of stereo headphones can be plugged in here
for private practice or late-night playing. The internal speaker system is
automatically shut off when a pair of headphones is plugged into either of
the PHONES jacks.
Turn Power On..................................................................................................
After making sure that the Clavinova’s AC cord is properly plugged
POWER
into the Clavinova itself and plugged into a convenient AC wall outlet,
press the [POWER] switch located to the left of the keyboard to turn
the power ON. In some areas a plug adaptor may be provided to match
the pin configuration of the AC wall outlets in your area.
When the power is turned ON, one of the voice selector LEDs will
light.
Set the Volume..................................................................................................
MASTER VOLUME
MIN
MAX
CLP-511
PIANO 1
PIANO 2 CLAVI.TONE E.PIANO 1 E.PIANO 2STRINGS
HARPSICHORD
Initially set the [MASTER VOLUME] control about half way
between the “MIN” and “MAX” settings. Then, when you start playing,
re-adjust the [MASTER VOLUME] control for the most comfortable
listening level.
Select a Voice.....................................................................................................
Select the desired voice by pressing one of the voice selectors. Use
the [VARIATION] button to select a variation of the current voice, as
required.
The Clavinova also offers keyboard touch response, so the volume
and timbre of notes played can be controlled according to how “hard”
you play the keys. The amount of variation available depends on the
selected voice.
Add Effects As Required.......................................................................
You can also change add reverb and/or a chorus effect as desired by
using the [REVERB] and [EFFECT] buttons (see page 12 for [RE-VERB] button operation, and page 13 for [EFFECT] button operation).
Playing the Demonstration Tunes
Demonstration tunes are provided that effectively demonstrate each of the
Clavinova’s voices. There are also 30 piano songs that you can play individually,
all in sequence, or in random order. Here’s how you can select and play the
demo tunes.
DEMO
PIANO SONG
CLP-511
PIANO 2 CLAVI.TONE E.PIANO 1 E.PIANO 2STRINGS
PIANO 1
CLP-411
PIANO CLAVI.TONE E.PIANO 1 E.PIANO 2
START
STOP
HARPSICHORD
/
HARPSI-
CHORD
PIPE
ORGAN 1
– /
NO+ / YES
/
PIPE
ORGAN 2
TEMPO/
SONG
PIPE
ORGAN 1
VARIATION
PIPE
ORGAN 2
VARIATION
Engage the Demo Mode .........................................................................
Press the [DEMO/PIANO SONG] button to engage the demo mode
— the voice selector indicators will flash in sequence.
Play a Voice Demo or Piano Song...............................................
● Voice Demo Playback
Press one of the voice selectors to start playback of the corresponding voice demo tune — featuring the voice normally selected by that
voice selector button. The indicator of the selected voice selector
button will flash during playback, and “---” (relative tempo) will
appear on the LED display. You can start playback of any other voice
demo tune during playback by simply pressing the corresponding
voice selector. You can stop playback at any time by pressing the
[START/STOP] button, the voice selector of the currently playing
demo.
● Piano Song Playback
To play any of the 30 piano songs provided, use the [TEMPO/SONG]
buttons to select the number of the tune you want to play (the number will
appear on the LED display), then press the [START/STOP] button.
Playback will stop automatically when playback of the selected piano
song has finished. To randomly select and play one of the piano songs
press the [VARIATION] button while playback is stopped.
Select “ALL” instead of a number to play all piano songs and voice
demo tunes in sequence, or select “rnd” to continuously play all
piano songs and voice demo tunes in random order. The [VARIA-
TION] button indicator will flash during playback. Press the [START/
STOP] button to stop playback. If a voice selector is pressed while
“ALL” is showing on the display, playback will begin from the corresponding song.
• While a voice demo or piano song is playing, you can use the [TEMPO/
NOTE
SONG] buttons to adjust the playback tempo as required. This produces
a relative tempo variation, with a range from “-99” through “---” to “99”.
• Use the [MASTER VOLUME] control to adjust the volume.
• The demo mode cannot be engaged while the recorder (page 17) is in
use.
• The default tempo is automatically selected whenever a new song is
ALL
” or “
selected, or playback of a new song begins during “
rnd
playback.
• No MIDI reception occurs in the demo mode.
• The demo/piano song data is not transmitted via the MIDI connectors.
* See page 48 for a complete listing of the demo tunes.
DEMO
/
PIANO SONG
Exit From the Demo Mode ...................................................................
After stopping demo playback, press the [DEMO/PIANO SONG]
button to exit from the demo mode and return to the normal play mode.
specified phrase within a piano song. Combined with the Part Cancel
function described below, this provides an excellent way to practice
difficult phrases.
Specify the Beginning (A) of the Phrase..............................
The A-B Repeat function can be used to continuously repeat a
RECORDER
START
STOP
FUNCTION
the beginning of the phrase you want to repeat. This sets the “A” point
(“A-” will appear on the display).
To set the “A” point at the very beginning of the song, press the
[FUNCTION] button before starting playback.
Specify the End (B) of the Phrase ...............................................
Select and play a piano song, then press the [FUNCTION] button at
FUNCTION
Press the [FUNCTION] button a second time at the end of the
phrase. This sets the “B” point (“A-b” will appear on the display). At
this point repeat playback will begin between the specified A and B
points.
The 30 piano songs provided on the CLP-511 have separate left- and
right-hand parts that can be turned on and off as required so you can
practice the corresponding part on the keyboard. The right-hand part is
played by the recorder’s [1] track, and the left-hand part is played by
recorder’s [2] track.
Turn the Desired Part Off ......................................................................
RECORDER
12
12
12
START
RECORDER
START
RECORDER
STOP
STOP
START
STOP
/
REC
part off — the corresponding indicator will go out (these buttons
alternately toggle the corresponding part on and off).
Press the RECORDER [1] or [2] button to turn the corresponding
NOTE
• The parts can be turned on or off even during playback.
• The Piano Song Part Cancel function cannot be used during “
rnd
” playback.
“
• The “Piano Song Part Cancel Volume” function described on page 25 can
be used to set the canceled part so that it plays at a volume from “0” (no
sound) to “20”. The default setting is “5”.
• Both parts are automatically turned ON whenever a new song is selected.
When the Synchro Start function is engaged, playback of the selected piano song will begin automatically as soon as you start playing
on the keyboard.
To engage the Synchro Start function press the [START/STOP]
button while holding the part button corresponding to the part which is
ON. The rightmost dot on the display will light. Playback will then start
as soon as you begin playing on the keyboard.
NOTE
• If you hold a track button which is OFF while pressing the [START/STOP]
button, that track will be turned ON and the Synchro Start mode will be
engaged.
Left Pedal Start/Stop..................................................................................
The left pedal can be assigned to start and stop piano song playback
via the “Left Pedal Mode” function described on page 25.
The dual mode makes it possible to play two voices simultaneously across
the entire range of the keyboard.
IANO 1 E.PIANO 2
HARPSI-
CHORD
To activate the dual mode simply press two voice selectors at the
same time (or press one voice selector while holding another). The
voice indicators of both selected voices will light when the dual mode
is active. To return to the normal single-voice play mode, press any
single voice selector.
NOTE
• The dual and split modes (CLP-511) cannot be engaged at the same
time.
• The [VARIATION] button indicator will light if the variation is engaged for
either or both of the dual-mode voices. While the dual mode is engaged
the [VARIATION] button can be used to turn the variation for both voices
on or off. To use the variation for only one of the voices the setting must
be made prior to engaging the dual mode.
• The chorus effect will apply to both the dual mode voices as specified
after engaging the dual mode (the default effect on/off and depth settings
are different for each voice combination). The effect depth for the dual
mode voices can be individually set via the Dual Mode “1st Voice Effect
Depth” and “2nd Voice Effect Depth” functions described on page 23.
Other Dual Mode Functions ...............................................................
The CLP-411/CLP-511 Function mode provides access to a number
of other dual-mode functions, listed below. See the corresponding pages
for details.
The split mode makes it possible to play two different voices on the keyboard
— one with the left hand and another with the right hand. The left-hand voice is
played on all keys to the left of (and including) a specified “split point” key, while
the right-hand voice is played on all keys to the right of the split point key.
SPLIT
SPLIT
To activate the split mode simply press the [SPLIT] button so thats
indicator lights. The split mode can be turned off at any time by pressing the [SPLIT] button again so that its indicator goes out.
NOTE
• The dual and split modes cannot be engaged at the same time.
Selecting the Left-hand Voice ..........................................................
HARPSI-
O 2
CHORD
STRINGS
The voice that was selected before the split mode was engaged
becomes the right-hand voice in the split mode. To select a left-hand
voice press the corresponding voice selector while holding the [SPLIT]
button. The indicator of the left-hand voice selector will light while it is
pressed, then only the right-hand voice selector and [SPLIT] button
indicators will remain lit.
NOTE
• The variation can be individually turned on and off for the split mode
voices. Normally the voice indicator of the right-hand voice lights in the
split mode. The [VARIATION] can be used to turn the variation for the
right-hand voice on or off as required. While the [SPLIT] button is held,
however, the voice indicator of the left-hand voice lights, and in this state
the [VARIATION] button can be used to turn the variation for the left-hand
voice on or off as required.
• The chorus effect will apply to both the split mode voices as specified
after engaging the split mode (the default effect on/off and depth settings
are different for each voice combination). The effect depth for the split
mode voices can be individually set via the Split Mode “Left Voice Effect
Depth” and “Right Voice Effect Depth” functions described on page 24.
SPLIT
Example:
A-1 b=1C 2F~2
A-1Bb-1C2F#2
Setting the Split Point...............................................................................
The split point is initially set at the F#2 key by default. You can reset
the split point to any other key by pressing the key while holding the
[SPLIT] button (the name of the current split-point key appears on the
LED display while the [SPLIT] button is held). The split point can also
be set via the Function mode (see below).
Other Split Mode Functions...............................................................
The CLP-511 Function mode provides access to a number of other
split-mode functions, listed below. See the corresponding pages for
details.
• Split Point ............................................... 23
The [REVERB] button selects a number of digital reverb effects that you can
use for extra depth and expressive power.
ROOM
HALL 1
HALL 2
STAGE
REVERB
To select a reverb type press the [REVERB] button a few times
until the indicator corresponding to the desired type lights (the indicators light in sequence each time the [REVERB] button is pressed). No
reverb is produced when all indicators are off.
OFF
No reverb effect is selected when no REVERB indicator is lit.
ROOM
This setting add a continuous reverb effect to the sound that is similar
to the type of acoustic reverberation you would hear in a medium-size
room. This is the default reverb setting.
HALL 1
For a “bigger” reverb sound, use the HALL 1 setting. This effect
simulates the natural reverberation of a medium-size concert hall.
HALL 2
For a really spacious reverb sound, use the HALL 2 setting. This effect
simulates the natural reverberation of a large concert hall.
STAGE
A simulation of the type of reverb produced in a stage environment.
The depth of the selected reverb effect can be adjusted for the
current voice by using the [–/NO] and [+/YES] buttons while holding
the [REVERB] button. The depth range is from 0 through 20 (the
current depth setting appears on the LED display while the [REVERB]
button is held). A setting of “0” produces no effect, while a setting of
“20” produces maximum reverb depth. Press the [–/NO] and [+/YES]
buttons simultaneously while holding the [REVERB] button to recall
the default setting: “10”.
• The reverb type and depth settings affect all voices.
While the chorus effect is on the effect depth can be individually
adjusted for the selected voice by using the [–/NO] and [+/YES]
buttons while holding the [EFFECT] button. The depth range is from 0
through 20 (the current depth setting appears on the LED display while
the [EFFECT] button is held). A setting of “0” produces no effect,
while a setting of “20” produces maximum effect depth. Press the
[–/NO] and [+/YES] buttons simultaneously while holding the [EF-
FECT] button to recall the default setting for the current voice (the
default depth settings are different for each voice).
Soft pedal
Sostenuto pedal
The CLP-411 and CLP-511 have three foot pedals that produce a range of
expressive effects similar to those produced by the pedals on an acoustic piano.
The soft pedal reduces the volume and slightly changes the timbre of
notes played while the pedal is pressed. The soft pedal will not affect
notes which are already playing when it is pressed.
The left pedal can also be assigned to song start/stop operation via
the “Left Pedal Mode” described on page 25.
If you play a note or chord on the keyboard and press the sostenuto
pedal while the note(s) are held, those notes will be sustained as long as
the pedal is held (as if the damper pedal had been pressed) but all
subsequently played notes will not be sustained. This makes it possible
to sustain a chord, for example, while other notes are played “staccato.”
The damper pedal functions in the same way as a damper pedal on
an acoustic piano. When the damper pedal is pressed notes played have
a long sustain. Releasing the pedal immediately stops (damps) any
sustained notes.