
About
In
the
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Drumtraks
arrangements.
of
functions.Inadditiontoenabling
be
recorded,
rhythm
interesting:
tempo
real
instruments
Each
instrumentisplayable
Cymbal,
Cabasa.
sound
andacharacter
simplifies
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overdubbed
sequencer
individual
changes.
Ride
The
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and
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instruments
design
the
Model
fully-programmable
the
creationofhighly
strikesaremarkable
and
edited
easily
multi-track
programs
instrument
the
Drumtraks
recorder.
with
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have
that
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already
records
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Drumtraks
performance
balance
its
thirteen
with
perfect
the
variations
volume
priceisa
its
own
wellontape.
and
key:
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Open
been
professionally-recorded
and
this
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synthesizers,
complex
digitally-stored
timing,
which
tuning,
fractionofthe
Snare,
Hi-Hat,
and
convincing
between
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Claps,
easeofuse
percussion
this
flexible,
keep
balance,
priceofthe
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things
for
the
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400
rhythmic
and
depth
sounds
multi-track
rhythmically
accents,
equivalent
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studio-quality
to
and
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with
tape.
re-recording,
"mix-down"
programmable
For
controlbyexternal
are
availableatthe
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by
chaining
upto99
signature.
recorded
played),
instrumental
recording
Multi-tracking,
splicing,oraccumulating
and
"bouncing"
mixer
instrument,
withamonophonic
mixersorprocessors,
back
panel
has
two
primary
patterns
different
Tempo
withadifferent
or
auto-corrected
track
together.
patterns,
rangeis40-250
canbeerased.
(appended).
Upto99
the
too,
The
withaten-year
canbeusedtostore
songs
canbedefined,
songisbuiltbyselecting
can be
Drumtraks
edited,
copied
and
memoryisretained
life.
For
permanent
the
contentsofmemoryona
the
Drumtraks
mixing,
parts
editing,
noise
between
through
standard
modes:
The
memory
anyofwhich
beats-per-minute.
instrument
to
one
volumeortuning,inreal
of eight
Patterns
which
patterns
appended.
can
and
even
when
storage
candothings
copying,
and
tape
output
six
pattern
capacityof3289
can
be upto100
and
erasing
distortion
tracks.
(which
audio
1/4-inch
and
levels
can
The
can
channels
phone
song.
Each
overdub
of
resolution.
be
copied
through
drive
Basically,
notes
measures
consistofupto100
inserting
powerisoff
and
volumeortempo
thankstoa
reprogramming,
common
cassette.
which
canbedone
Drumtraks
(plus
jacks
are
the
processes
contains
stereo
headphones).
the
metronome)
(see
Section
songs
impossible
without
are
canbeallocated
longinany
of a
pattern
time
and
steps.
Steps
(exactly
Any
part
added
specify
together
changes.
backup
the
built-in
battery
interface
of
a
9).
made
to
time
can
be
as
of
an
how
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functional
two
jacks
patternorsong
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sync-to-tape
a
new
SCI?s
24-
or
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new
are
48-pulse
equipped
control
CM400A
from
information
for
optional
selection,
two
built-in
thereisa
clock
interfaceisalso
Model
610
instrument.
the
keyboard
11/83
is
displayedonfour
footswitches
and
pattern
interface
selectable
output.
included.
Six-Trak
(For
multi-timbral
example,
of the
allow
repetition.
systems.
24,48or96pulse-per-quarter
For
operation
This
the
Prophet-T8.)
eight-segment
"hands-free"
For
older
with
computer-controlled
enables
synthesizer
Drumtraks
starting
sequencersorrhythm
the
Drumtrakstosynchronize
/sequencer,
canbeplayed
LEDs.
For
and
stoppingofsongs,
note
or
with
performance,
units
clock
input,
sequencers,
any
other
full
and
and
the
to
MIDI-
velocity

3
OVERDUBBING
The
section
see
Section
affect
all
songs
covers
*t.
Only
PATTERNS
basic
overdubbing
patterns
which
contain
of
existing
canbeoverdubbed,
that
pattern.
patterns.
not
songs.
For
more
pattern
Overdubbing
a
pattern
functions,
will
Select
PATTERN
Select
If
TEMPO,
or
Select
PATTERN
Press
The
metronome
the
4/*
note.)
as
accented
PATTERN//(using
FUNCTIONS
desired
desired,
TUNING.
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pattern.
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PER
INSTRUMENT
STOP.
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pattern
FUNCTIONS
RUN
(or
footswitch).
selected
time
pattern
will
signature.
will
clickonthe
(For
timeitclicksonevery
Adjust
desired.
METRONOME
The
metronome
each
time
the
SELECT
switch).
and
adjust
VOLUME
(using
SELECT
switch).
play
and
the
beat
example,
quarter
VOLUME
will
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loops.
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and
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overdubbing
willbeincluded.
Note;
to
learn
Erase
To
Playing
the
default
willbeerror-corrected
valueof1/16-notes.
howtouse
Instrument,
stop
editing,
Error
see
page
press
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4-6.
footswitch).
CM400A
11/83
instrument
the
front
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and
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section
pattern:
PATTERNS
can
for
useasa
first
store99patterns,
"stop11
covers
simple
numbered
function.)
recording
00-98.
with
the
(Pattern99cannotberecorded.
following
"default"
values
for
the
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then
ERROR
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howtochange
Note:Ifitisdesiredtosave
now,
before
Beforeapattern
the
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accidentally
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switch
erasingorrecording
can
be recorded
PATTERN
recording
PATTERN
to
advance
function.
over a
FUNCTIONS
to
PATTERN.
Enter
be
two
digitsofpattern
cleared.
number
these
the
and
factory
(see
Section
4-1
Erase
other
patterns
underanumber,
This
protective
desired
pattern.
ERASE
to
options.
using
8).
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the
arrangement
the
cassette
location
mustbecleared
helps
SELECT
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m
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FUNCTIONS
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CORRECT
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with
Note:Besuretoenter
numbersoryou
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wrong
pressing
second
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to
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pattern.Ifyou
first
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digitisentered).
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willbecleared.
function
CM^OOA
may
digit,
second
will
#.
11/83
accidently
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you
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twice
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automatically
the
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erase a
the
escape
the
the
return
by
0
ERASED
PATTERN
/
1
1
1
*

6
PLAYING
If
no
song
SELECT
SONGS
functions
SONG
FUNCTIONS
are
on,
switch.
6-1
Run/Stop
press
SELECT
£
8ONO#
SONO
FUNCTIONS
SONG//willbeautomatically
and
the
Left
display
(or
the
last
song
selected).
Enter
Press
selected
songisempty,orthe
the
go
Whileasongisrunning,
numberisdisplayedonthe
the
volume
Right.
The
beatofeach
desired
RUN
song
song
(or
will
songisempty,
off
immediately.)
pattern
number
change)isdisplayedonthe
front
panel
will
pattern.
will
//.
footswitch).
start.
first
the
RUN
(or
blinkonthe
selected
indicate
00
The
(If
selected
pattern
LED
the
Left
tempo
in
will
step
and
or
first
CURRENT
SELECTED
PUN
STOP
n
n
u
u
9ONQ
8ONQ
OR
n
U
NUMBER
i
f
STEP
PATTERN
NUMBER
If
the
final
empty
will
Otherwise
pattern
stopbyitself.
stoppedbythe
empty
song
"Cueing,"
While
numberbyentering
using
stopped,
INC/DEC.
CM400A
stepofthe
(such as
the
song
//99),
will
footswitch
numberisselected—see
next
page.)
select
two
11/83
songisan
the
song
loop
until
(or
6-2
another
digits,
song
an
Selecting
or
Songs
6-1
CURRENT
SONG
S'S
OR
HB

6
PLAYING
SONGS
6-3
Cue/Stop
While
running,
selectadifferent
number.Itwillbeshowninthe
display.
When
current
"cued-up"
Cueing
stop
plays,
song
A
tempo
is
the
current
loop,
the
will
automatically
canbeusedtomakeasong
insteadofloop:
select
number.
basic
#99oranother
song
will
happenstobe
run.
song
new
finishes
song
which
start.
while
the
empty
playatwhatever
selected
when
song
Left
its
you
song
it
Tempo
CURRENT
□
4
7
SONG
STOPS
AT
END
SLOWER
SONG
5
i.i
TEMPO
OR
|
FASTER
6
.■
X2
However,
the
song
"relative"
7-8
and
In
footswitch
While
footswitchisheld,
will
song
the
initial
canbeprogrammed,ascan
tempo
7-9).
song
runningasong,ifthe
repeat.
will
mode,
can
continue
changes
control
the
When
it is
normally.
starting
the
playback.
current pattern
tempo
(see
6-5
RUN/STOP
6-6
NEXT/REPEAT
REPEAT
released,
of
pages
RUN/STOP
the
r
i
Footswitch
Footswitch
REPEATS
i
i
SAME
'a
PATTERNINSONG
1
CM400A
11/83
6-2

7
ADVANCED
SONG
FUNCTIONS
7-6
ExtendingaSong
Suppose
And
you
you
wanttoaddanendingtoit,toproduce:
EXAMPLE
Select
Song
have
Step
00
01
02
03
04
00
01
02
03
04
05
#
the
following
song,
Entry
32
17
32
17
END
32
17
32
17
24
END
//45:
Song
Function
LEDS
SONG
//
Displays
Left
00
(song)
Right
Press
or
Select
ENTER
INC
INC
two-digit
use
INC/DEC.
BUILD
INC
INC
24
ENTER
ENTER
Note:Ifa
stop
after
song
number,
MODE
songisextended
one
play,
rather
withanempty
than
SONG
BUILD
BUILD
PATTERN
SONG//
loop.
45
#
MODE
(song)
45
MODE/00(step)
//
01
02
03
04
04
05
45
(song)
pattern
(such as
pattern
32
(current
17
32
17
E
24
E
99),
the
song
entry)
will
CM400A
11/83
7-5

9
USING
If
you
aware
does
are
For
available
stereo
pairoftape
The
maximum
usinganexternal
maximum
increases
alter
inserted
normal
regenerative
which
CHANNEL
have
that
not
summed
maximum
channel
the
precisely-timed
become
the
have
intoamonophonic
through
image
brief
withanexternal
tracks.
outputs
signal-to-noise
level.
and decreasesinvolume.
instrument
into
any
decayofmostofthe
delay
OUTPUTS
Drumtraks
pan
facilities.
flexibility
separate
mixer
The
Drumtraks
line.
familiar
are
external
tone.Ifavailable,
echoes
with
the
PER
has
its
own
level-mixing
In
normal
signalatthe
the
outputofeach
back-panel
mixer.
still
controlledbythe
ratio,
you
Delay
instrument
may
mixer
channelorappliedtothe
lines
are
rhythmically
use
jacks.
The
mixer
wanttosetorprogram
will
alsobehandytoinduce
Equalization
effects
instruments
can
alsobeused
INSTRUMENT
facilities.
all
six
audio
AUDIO
volumes
OUT
audio
This
PER
devices
canbesynthetically
intermingled
channel
allows
output
INSTRUMENT
shouldbeas highaspossible.
canbeusedtoslightlyorradically
VOLUME
But
the
channels
jack.
youtocreate
canbeused
all
suchaschorusordelay
mixer
for
with
plus
and
the
VOLUME
instrument
outputs.
lengthened
synchro-sonic
the
control,
internal
the
metronome
liveorto
non-programmed
For
original
you
are
mixer
metronome
are
the
desired
drive
knob.
volumes
example,
effects,
material.
For
to
can
be
the
with
in
a
If
a
While
METRONOME
AUDIO
lt
track.
metronome
tracks),
dense,oris
The
sequencers
advanced
of
But
example,togetaneighth-note
even
recording,
OUT
but
may
actuallybeheardasa
OUT
does
the
metronome
jack.
appearatMETRONOME
(Foranac-coupled
beat
mayberedundantorunnecessary
but
may
be
extremely
"sitting
metronome
(such
through
the
time
signature,
finer
resolution
higher
resolution,
out"
signalisa
as
SCPs
its
footswitch
in
canbeobtainedbyadjusting
16/16or32/32.)
During
playback,
"double-click,"
clock
signal,
useful
forafew
measures.
very
Pro-One,
jack).
4/4
the
sequencerorarpeggiator
clock
appears
wide
see
when
pulse
or
the
Since
you
through
the
OUT.Asthe
which
paragraph
the
percussion
that
Prophet-600
the
AUDIO
metronome
does
metronomeisdc-coupled,
should
10-2.)
when
When
percussion
is
highly
canbeusedtoclock
Arpeggiator—which
metronome
could
the
time
signature
could
useatime
OUT,
notbeused
but
not
notatthe
appear
foraclick
multi-tracking,
is
present
(on
syncopated,
triggered
appearsonthe
play
and
signatureof8/8
beat note
quarter
tempo.
through
the
other
is
less
can
be
notes-
For
(or,
for
CM*00A
11/83
9-1

10
CLOCK
IN/OUT
10-3
Sequencer
Interface
Typically
First
The
Check
input.
(The
characteristics.
while
to
clock
Check
24
PPQN).
Put
you
might
create
clock
signals
the
out
that
the
percussion
rate
from
CASSETTE
some
that
the
sequencer
high-impedance
the
sequencer
use
the
willbe24
CLOCK
CASSETTE
CLOCK
OUT
is
into
record
Drumtraks
songonthe
PPQN
OUTiscorrectly
OUTisdc-coupled—so
ac-coupled,
sequencer
clock
input
mode,
clock
unless
out
Drumtraks.
you
change
cabled
and
CLOCK
thus
preferred
inputs).
rate
is
switched
but
don't
start
withasequencerasfollows:
it.
correctlytothe
OUT
preferred
for
it.
sequencer
differ
sync-to-tape
to
match
onlyintheir
for
interfacing
(but
the
Drumtraks
clock
drive
sequencers,
can
be
used
(usually
Start
the
Drumtraks
start
recording.
Play
accompanimentonthe
After
Put sequencer
Restart
Sequencer
drum
part
ends,
in
play
Drumtraks
will
playbackinsync.Ifdesired,
with
the
*
switch
mode
song
with
footswitch.
synthesizer.
off
sequencer
(and
again,
footswitch.
CLOCK
recording
don't
start
adjust
OUT
will
with
it).
tempo.
start.
sequencer
The
sequencer
footswitch.
will
CM400A
11/83
10-3

11
USING
MIDI
Program
A
Drumtraks
whichisusedtotransfer
To
This
respond
former
The
record,
The
Rather
48-PPQN
editing
However,
into
following
Dump
programisthe
loadapattern
Hold
ENTER,
causes
by
sending
the
slave
from
the
program).
Drumtraks
overdub,
SCI
Model64contains
than
facilities,
one
programmable
canbeconnectedtothe
and
with
MIDI,
clock
appliestooperationinfuture
interface.
the
super-sequencers
programs
the
mastertothe
press
3.
to
sendaprogram
entire
playback
one
the
Since
MIDI
sequencerisnot
system.Inadditiontothe
setofall
between
pattern
Drumtraks
slave,onthe
dump
contents
11-*
with
setofMIDI
Drumtraks
the
will
inevitably
of
its
Use
with
Model
the
Drumtraksinsynchronization.
connectors
interfaces
Drumtraks
needed.
appear
MIDI
and
song
units.
slave:
request
memory
Sequencer
610
to
to
Six-Trak,somulti-timbre
for
to
the
contains
syterns:
its
that
will
MIDI
functions
data.
the
the
use
Model
Thereisan
master.
slave
withaMIDI
64 by
own
extensive
link
operation
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master
(erasing
the
slave's
sequences
synthesizer.
way
of
the
memory
all
MIDI
discussed
instruments
above,
will
24-
or
and
the
Mode
When
will
keyboard
If
Drumtraks
Channel
powerisswitched
ignore
any
channel
numbers
the
master
Whenitleaves
To
display
Hold
To
change
While
If
the
channel
MIDI
Clock
Whenaslave
switches
Hold
Press
Press
To
sequencer
will
then
the
the
channel
both
ENTER
the
channel
holding
numberischangeditwill
Drumtraks
itselftoreceives
both
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switch
willgooff.)
on,
the
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designations,
to
which
it
is
sensitive
playing
sendsanOmni
listen
factory,
TEMPO
three
backtointernal
for
key
the
Drumtraks
number:
and
0.
number:
ENTER
and0,select
receivesastart
MIDI
switches.
times,tomove
events
clocks.
clock
all
received
(see
Figure
Mode
onlyonthe
basic
Off
channelissettoChannel
channel
remain
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the
mode,
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switching
decimal
press
key
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11-2
for
key
commandtothe
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with
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evenifpowerisswitched
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can
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all
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the
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Drumtraks,
it is
set.
15.
off.
manually:
Left.
(The
decimal
point
it
of
the
CM400A
11/83
11-3

13
HIDDEN
In
additiontonormal
by
using
already
FUNCTIONS
the
controlsinother
been
discussed.
control
operations,
than
This
section
certain
normal
gathers
ways.
lesser-used
Someofthe
them
all
options
hidden
together:
are
available
functions
have
Memory
Clear
Playback
Playback
If
thereisan
Remaining
Hold
INC/DEC
Read%remaininginleft
All
Memory
Hold7,8,9,INC,
Clock
Hold
both
Press
To
select
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Hold
For24PPQN
For48PPQN
Program
Do
the
Dump
the
followingtosendaMIDI
request,itwill
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Press
simultaneously.
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TEMPO
ENTER.
clock,
Display
Output
external
ENTER.
decimal
clock
square
(20
Request
dumpaprogram(asetofpatterns
ENTER.
3.
display.
and
DEC
simultaneously.
switches.
use
INC/DEC:
points:
MIDI
input,
wave,
microsecond),
clock
press
outputisdisabled.
1.
press
program
dump
96
2.
request.Ifa
24
MIDI
and
songs)tothe
device
recognizes
400.
MIDI
Channel
Hold
Press
Read
To
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Disable
Clock
For
MIDI
For
Pads
Hold
Press
Pads
Hold
Press
Test
service
Test
service
Select
ENTER.
0.
current
select
new
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MIDI
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4,
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ENTER.
5
only.
ENTER+8
only.
ENTER+7
channel
channel
numberindisplay.
(1-16),
connects
connects
while holding
CLOCKINto
MIDIINto
ENTER
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MIDI
and0,use
OUT.
OUT.
Haltsifbad.
INC/DEC.
Haltsifbad.
CM400A
12/83
13-1

SongAsetofsteps
For
use
as
stop
songtostopatthe
The
following
initial
step
end
tempo,ifany
type
which
function,
exact
song
attributes
and
value,
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relative
relative
empty
perform
song
endofits
can
number
volume
tempo
change
pattern,
//99
is
last
are
recordedinnon-volatile
be:
change
tempo,orvolume
always
pattern.
blank.
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changes.
it
will
memory:
cause
the
current
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Swing
pattern
previously-selected
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varying
represents
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notes
written.
for
quarter
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of
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so
that
playback
the
a
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which
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example,
note
selecting
perfect
change
copy.
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of
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valueissetbydefaultto50%,
canbeadjustedto54,
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the
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this
the
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value
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wouldbeshortened
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values
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would
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100
steps.
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it
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words
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actually
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from
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first
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notes.
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to
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monotony
Note
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the
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in
a
the
the
The
maximum
tempo
steps
Although
at
CM400A
changes
into
hand
the
the
usually
classical
Largo
Larghetto
Adagio
Andante
Moderato
Allegro
Presto
Prestissimo
11/83
value
song.
forasingle
greater
irrelevanttomost
than
names
40-60
60-66
66-76
76-108
108-120
120-168
168-200
200-208
this,
for
tempo
simply
drum
tempo
change
put
twoormore
machine
ranges:
14-3
stepisplusorminus
successive
work,itis
sometimes
15.
Therefore
tempo
handytohave
for
change

TABLE
MO
Data
2
Dump
Format
Bytes
00-C7
C8-18F
190-191
192-n
n+l-m-1
m-1DFF
(Hex)
Description
Song
Pattern
PointertoSpace
Song
unused
Pattern
A
dumpinthe
memory.
if
songorpattern
All
data
Pointers
Pointers
Data
(see
memory
Data
400
dumps
mustbemaintained
pointers
songsorpatterns).
TABLE
Song
3
Pointers
(see
Table
(see
Table
After
Table
(see
all
are not
5).
Tables6and
pointer
3).
4).
Song
99.
7).
tables,
correctly,
updated
song
or
when
data,
the
400
changes
are
pattern
could
data,
"crash"
madeinthe
and
unused
(for
example
lengths
of
Bytes
0-1
2-3
it
C6-C7
Note:
at
TABLE
Pattern
(Hex)
Data
the
start,
Bytes
C8-C9
CA-CB
(Hex)
4
Pointers
Description
PointertoSong
format.
PointertoSong
PointertoSong
memory
patternsatthe
for
00.
01.
99.
songs
end,
Description
PointertoPattern
PointertoPattern
Always
and
patternsisfrom
and
00.
01.
equals
unused
PointerisstoredinLS-then-MS
2392H.
memoryinthe
Pointer
2392H
storedinLS-then
through
middle.
3FFFH,
format.
with
-MS
songs
18E-18F
PointertoPattern
99.
400
MIDI,
page
5