Roland TD-303 Owner's Manual

!~Roland

Computer Controlled

Bass

Line

TD-303

OWNER'S

MANUAL

CONTENTS

Page

BATTERY

REPLACEMENT

AND

PRECAUTIONS

.......................................

2

INTRODUCTION

[I]

BASS

AND

THE

TB-303

..................................................................

4

(2]

THE

BASIC

IDEA

BEHIND

THE

TB-303

................................................

4

BASIC

COURSE

[I]

CONNECTION

AND

INITIAL

SETTINGS

................................................

7

(2]

WRITING

AND

PLAYING A BASS

LINE

(PART

1)

.....................................

9

INTERMEDIATE

COURSE

[I]

THE

TONE

CONTROL

SECTION

AND

TUNING

.....................................

33

(2]

WRITING

THE

LENGTH

OF

THE

NOTES

(ALTERNATIVE

METHOD)

..............

35

[ill

WRITING

AND

PLAYING A BASS

LINE

(PART

2)

....................................

38

@]

TO

WRITE

YOUR

OWN

BASS

LINES

.................................................

49

ADVANCED

COURSE

[I]

USEFUL

FUNCTIONS

OF

THE

TRACK

...............................................

69

(2]

APPLIED

METHOD

OF

THE

TB-303

...................................................

73

TROUBLE

SHOOTING

..................................................................

81

SOUND

RANGE

TABLE

..................................................................

88

SPECIFICATIONS

........................................................................

89

2

IMPORTANT

NOTES

LOCATION:

• Operating the TB-303 near a neon or fluorescent lamp may cause noise interference.

If

so,

change the angle of the

TB-303.

• Avoid using the TB-303

in

excessive heat or humidity or where it may be affected by direct

sunlight or dust.

POWER SUPPLY:

• When using an

AC

adaptor, use only a

BOSS

ACA120 or ACA220, 240 depending

on

your country's voltage system.

CLEANING:

• Use a soft cloth and clean only with a neutral detergent. DO NOT

USE

SOLVENTS SUCH

AS

PAINT

THINNER.

BATTERY REPLACEMENT

AND

PRECAUTIONS:

• Replace the batteries with a complete set of new batteries when the

BATIERY CHECK indicator flashes, signalling a drop in

voltage, or if the sound becomes inferior.

• Replace with four 1.5v dry cell batteries.

• The TB-303 features a non-volatile memory, which

will retain patterns when switched OFF. It relies on its batteries for a backup circuit to protect these memories.

• If the batteries are changed within one minute, the memory

will hold the

DATA.

•

Be

sure to keep the batteries

in

the

housing, even when using an

AC

adaptor.

Then, if the

AC

adaptor

is

disconnected,

operation

immediately changes to battery,

allowing continued performance.

3

4

TB-303

INTRODUCTION

The TB-303

is

an

automatic Bass machine

which can memorize the Bass

line of a

musical piece and replay

it

automatically.

wBASS

AND

THE

TB-303

A musical bass lline involves many complex factors, such

as

different pitches and beats,

and

consequently

it

is

a difficult thing to

reproduce automatically. It may vary depending on

the rhythm, chord progression, style of music and the character of the musician. Sometimes it can take the

role of a low

melody,

then

it

might outline the chords or

• Bass line example:

c

@=t

J

~

J

7 I J

.r

J

[2JTHE

BASIC

IDEA

BEHIND

THE

TB-303

In

order to memorize a Bass line, divide

it into each measure (pattern) and memorize one pattern at a time. Each

"pattern" can remember various

musical factors, such

as

'pitch', 'length of

note' and 'accent',

individually. After

memorizing

several patterns, these patterns

may

be

joined

in

order to produce the Bass

.r

I J

become a strong rhythmic influence

in

an

ensemble. But overall it

is

a very important

part of the rhythm section,

following the

chord progression,

mainly using the root and

fifth note.

(As

shown below) Before you enter

the Basic Course, it

is

necessary to under-

stnd the idea behind the TB-303

.rl

J

w"J

.r&fi-

line of a musical piece.

(Fig.

1 )

The

following

is

a description only of the

operation of the TB-303. For precise

instructions refer to the Basic Course.

Fig.1·

~

i?=cp

j

v-

dl

CJ

~

?r

J I d

•

I

?=c

1

I

2

•Pitch

l

I ?:c.

•

• •

•

The

length

of

Note

~?=c

n

.J

.r

Jl

•

Accents/Slides

i

l?=c

J.J

~

i

•

I

?:c

1

I

2

A.

PITCH

1.

HOW TO MEMORIZE PITCH

Press the key switches

on

the panel,

in

order, for one pattern.

2.

KEY SWITCHES AND RANGE

The key switches have only one octave

on

the panel, but actually you can play

four octaves

by

using the transpose

switches. Then by using these

additional switches, the TB-303 can easily cover the

essential range of

an

electric or

acoustic bass.

B.

THE LENGTH OF NOTE

• HOW TO MEMORIZE THE

LENGTH

OF THE NOTES

By

pressing the correct combination of

the switches

labelled}

}and

:;

, the

rhythm for one pattern

can

be

memorized.

The

use of sixteenth notes ( } ) as the

basic writing

tool allows highly technical

I

D

>

I

.r

Jj., r

•

3

•

3

I

)p

bass lines to be written into memory, while slower timings can be achieved by using combinations of this basic unit (e.g.

J

=iffl

).

NOTE:

"Length of note"

in

this manual means

Timing

Value.

C.

ACCENT

After memorizing the pitch and length of note (rhythm),

particular features of BAss

instruments,

like accent or portamento (slide), can be written into memory where needed.

• HOW TO MEMORIZE ACCENT

OR PORTAMENTO

Whilst calling back the memorized pattern,

place the accent or slide against

the required note by using the switches.

One

complete

Bass

PATTERN

has

now

been

written

Into

memory.

5

6

D.

COMPLETING

THE

BASS

LINE

After memorizing several patterns, complete the Bass line for a piece of music by combining these patterns.

•

HOW

TO MEMORIZE THE

BASS LINE

To

memorize the Bass line, simply select

each measure,

in

turn, and write them

into the memory.

One pattern can

be

chosen several times, and can also

be

transposed into any other

key.

Consequently, if the Bass line is simply a

repetition

of·

one pattern, or only a transposition of that pattern, then you only need to write one pattern into memory (Fig.

2).

One

complete

Bass

Line

has

now

been

written

Into

memory.

Fig. 2

c

f):aJ

F , I

Memorize

this

parttem

only.

•

F

I

E.

CREATING A SOUND

The TB-303 cannot memorize the tone colour, but can make a Bass sound, just like a synthesizer, by using the

TONE

CONTROL SECTION.

In

this way, the TB-303 can create an appropriate Bass sound for the Bass

line you have written.

F.

HOW

TO

USE

THIS

MANUAL

The

switches and control knobs have

several functions, so operating the TB-303 may seem a little complicated. You

may find difficulty using the TB-303

at first, because it is so different from a

Bass Guitar or a keyboard instrument. Therefore, this

manual includes a Basic,

Intermediate and Advanced Course to help you understand these operations, step by step. However, each

individual

operation

is

quite simple, so take your

time and master each step.

I T I

•

Shifting

up a perfect

fourth

•

Shifting

up a perfect

fifth

BASIC

COURSE

mCONNECTIONS

AND

INITIAL

SETTINGS

A.

CONNECTIONS

AC

Adaptor

Jack

•Connect

an

AC

adaptor to this jack

euse

only a

BOSS

ACA-100 or equivalent

Guitar

Amplifier

SP

Audio

Amplifier

SP

I

_

_j

Note:

(When using headphones, do not connect

anything to the output jack).

• Use stereo headphones (impedance

80-300)

Firstly, we should mention that when monitoring a bass sound through

headphones, quite often the pitch will appear incorrect. This occurs whenever a bass sound

is

produced so close to the eardrum.

To

avoid this you might try altering the TONE CONTROLS, otherwise you will have to use a loud speaker.

7

8

B.

INITIAL

SETTINGS

G)

Complete the connections

as

instructed

in

A CONNECTIONS

on

page

7.

@Turn

on

the

POWER

SWITCHNOLUME

CONTROL

(clockwise).

One

the

SELECTOR

SWITCHES B to

Ell

flashes.

@ Set the cotrol knobs

on

the panel

as

shown below.

IMPORTANT NOTES

When pressing the button, do not fail to release it once, and go

on

to the next operation, except

for the cases that it

is

specifically instructed to

keep the button pressed.

(The

TB-303 does not

function

properly if you go

on

to the next

operation without

releasing the button.)

In

some

cases the

"Results" written

in

the owner's manual are not obtained when you press the button, but it

is

obtained

as

soon

as

you

release the button.

2

WRITING

AND

PLAYING

A

BASS

LINE

(Part

1}

A.

Operation

......

Operate

whilst

looking

at

the

Procedure

Table

as

an

appendix.

The

TB-303 can memorize the Bass line into

a computer memory by using switches, and

we

call this process PATIERN WRITING.

c

A,

Let's begin by writing the following simple four bar Bass line.

/)'1'1

4'-;z

••

Sample Score

?=c

J.

F'

F I

J.

r

I

r·

r

I

r·

I

A

-

c

I

PITCH

c E G

til

E

Writing

Table~~

====:=============~

TIME

jeooooo

eooooo

eoooj

jeooooo~eooooo:eoooj

Operation

Result

Operation

Notes

Set the TB-303 according to the instructions

Make sure the

TB-303 is not

1

in

INITIAL SETIINGS (page

8).

running. (the BATIERY CHECK/RUN indicator button

Q)

is OFF).

Set the MODE

SELECTOR

@ to

The

TB-303 is now ready to write

PATIERN

WRITE.

a Bass pattern.

MODE

2

~-"'~

TRACK

• PLAY

WRITE}

PATTERN

9

Select

GROUP

I by

using

the

PATTERN

GROUP

SELECTOR

@.

!TRACK!

PATT.GROUP

3

~~-

·rn:-~

~-~-~

Lffi·~

4

5

10

Select

PATTERN

SECTION

A by

pressing

the

SELECTOR

SWITCH

@

marked

A .

0

~

0

D C D

J'J')

L3.J

Iii

~

PATT

SECTION

Select

PATTERN

1 by pressing

SELECT-

OR

SWITCH @ marked-

.

The

indicator

lights

up.

The

indicator starts

flashing.

Refer

to

"SELECTING

THE

WRITING

SWITCHES"

on

the

Refer

to

"SELECTING

THE

WRITING

SWITCHES"

on

the

Writing

switches

are

selected

from

the

Selector switches @ •

to

Ill

6

Whilst holding the

SELECTOR

SWITCH

@ marked • down, press the

PATTERN

CLEAR button

CD.

This clears the chosen memory position of any previous data.

ID.c.ll

BAR RESET I

PATTERN CLEAR

RUNQ

BATTERY

RUN/STOP

Refer to the operating

note.

.SELECTING

THE WRITING SWITCHES

1

·······································

8

A new Bass pattern can be written.

Other

LED

indicators will light up to show that the pattern has been cleared from memory.

Also, irrelevant indicators may light

up regardless of the actual operations, but it

is

not the sign of

the machine

trouble.

~1

1:1:1:1:1:1:1:1~1:j~

e PATIERN GROUP

selector

©

(Selectors PATIERN GROUPS

I,

II, Ill,

IV)

I I I I I I I I I I

..

UIDEIHIDIIDIEI

• Selector

switches@

marked • to

Ell

(Select

memory

positions)

• Write the patterns into u signs.

(There are 64 patterns

altogether.)

Select

one pattern by operating 3 switches.

(Select * sign from page 1

0)

eWhen

the

PATTERN

GROUP selector is

between two

levels, you can set the knob

to either position

(as

shown beside).

,-----....,

e SELECTOR switches

marked

A,

8

(Select PATIERN

SELECTIONS

A,

8 )

ITRACKI PATT.GROUP

~~-

·~;J

ex©·~

11

7

8

12

Press the

PITCH

MODE button

(8)

PITCH MODE

*

1~1

According to the "WRITING TABLE" for

IPITCHI

, press the key-switches

representing the notes,

in

order, from

left to right. (Refer to

"How

to Use the

Table")

PITCH

c E G

The

PITCH

MODE indicator@ lights

up.

The sound

is

heard and the indicator illuminates.

The

TB-303

is

ready to accept

the pitches.

e HOW

TO

USE

THE WRITING

TABLE

FOR

I

PITCH

I c E G

• The letters

in

the table show the

pitch of the notes.

• There are two 'C' keys

on

the

keyboard, the upper 'C'

is

marked

~'C'''.

• The pitches line

up,

in

the order of

playing, from left to right.

If

you

press

the

wrong

switch,

and a)

wish to begin again - repeat the operation from

7.

b)

only need correct one note press the BACK button

@ to go

back one step, then press the correct pitch.

9

10

11

Press the FUNCTION button

(b).

•

HOW

TO

USE

BACK

BUTTON

In

case of correcting the

mistaken sound, press the

BACK

button @ after pressing the wrong key-switch. When pressing the

BACK button, the TB-303

backs up one step, and

allows

you to write the correct pitch

in

that place .

The

NORMAL MODE

indicator ~ lights up.

.

,tciNG

.tt:tl

PITCHES

(This

can

be

omitted)

'"

'«',;'

',

,,,

,',

',

,,

''

,,

Press the

PITCH

MODE button

(8)

PITCH MODE

*

1~1

Press the

TAP

button

®slowly

three

times.

,.....-;;]

~

[J]

I WRITE/NEXT I

TAP

[

RIGHT

PITCHES

J

The

PITCH

MODE indi-

cator

@ lights up.

The indicators light up to show the written pitch. The notes are

heard

in

order

[

WRONG

PITCHES

l

Go

ahead

to

.

operation

12 on

Repeat

the

operat1on

the

from

1

The

pitches have now been written

into memory, and the TB-303 is

in

its

NORMAL MODE.

Whenever you press the

TAP

button,

the sound

is

heard.

•

In

this case, you must press the button three times because you have written three pitches.

If you press the button more than three times, you

will hear a random

selection of notes.

• If you wish to check

it

again,

repeat the operation from

10.

• Be sure not to press the

keyswitches this time, otherwise the pitch you have written

will

change.

13

Press the FUNCTION button (b).

12

c

-

Press the TIME MODE

button®

.

14

The NORMAL MODE indicator @ lights

up.

The

TIME MODE

indicator @ lights up.

Once again the TB-303 is

in

NORMAL MODE.

The length of note can

be

written.

14

According to the Writing Table foriTIMEI, press the switches. (Refer to

"HOW

TO

USE THE WRITING TABLE")

Press

the TIME MODE

button®.

The appropriate indicators light up, as you press each switch.

After pressing the switches 16 times, the NORMAL MODE indicator @ lights up.

e HOW

TO

USE THE WRITING TABLE

FOR

ITIMEI

I

TIME

jeooooojeooooojeoooi

e ...... Press the SELECTOR switch

marked).

0

......

Press the SELECTOR switch marked_)

. Press the SELECTOR switch

marked

:{

(not used

in

this

example).

Each sign has been drawn

in

order,

from

left to right. When writing

in

the

TIME MODE, no sound

is

produced.

• Should you fail to press a switch, repeat the operation from

13.

• When you have finished writing the

length

of

note, the TB-303 automatically changes to the NORMAL MODE.

(This can be omitted)

The TIME MODE

indicator @ lights up.

15

Press the

TAP

button ® slowly

16

The indicators illuminate

Remember,

no

sound

is

produced

in

the TIME

MODE.

times.

in

the appropriate order.

After pressing

16

times, it

16

I[I5l

automatically changes to the

NORMAL

MODE.

If

you wish to check it again,

repeat the operation from

15.

The

indicators

light

I

up

in

the

correct

WRONG

order.

Go ahead to

Repeat

from

Operation 17.

the

operation

13.

PLAY··

.~

•.

~

.·4111

..

ffl()lar,(J

"'*/STOP

Press the RUN/STOP button @.

The BATIERY

Use the

TEMPO

control knob @

RUN

*BATTERY

CHECK/RUN indicator

and

POWER

SWITCH/VOLUME

0 lights up and the

control knob ® to adjust tempo

[L.J

Bass pattern will play

and volume.

repeatedly.

17

-

RUN/STOP

.J

16

[

18

1

e

HOW

TO

CORRECT

IS

THE

BASS

PATTERN

CORRECT?

l

~

If

there

were

errors

In

both

the

pitch

and

length

of

note:

a)

stop the TB-303@ pressing the

RUN/STOP

button

CORRECT

l

[

WRONG

l

b)

repeat operation from

7.

~

If

the

error

was

In

the pitch

only:

a)

stop the TB-303@ pressing the

RUN/STOP

button

Press the

RUN/STOP button ®

*The

BATIERY

b)

repeat operation from 7 to

9.

CHECK/RUN indicator

c)

then go to operation

17.

RUNQ

BATTERY

light

Q)goes

out.

~If

the

error

was

only

In

the

[J]

length

of

note:

a)

stop the TB-303@ pressing the

* The TB-303 stops

RUN/STOP

button K

RUN/STOP

immediately

b)

repeat operation from

13.

You

have

now

correctly

entered

one

Bass

PATTERN.

Operation

Make

sure the control knobs

and

indicators are

as

shown

below.

Result

Operation

Notes

17

2

3

4

18

Press

the

SELECTOR

switch @

marked

B.

The

ir:Jdicators

of B

flashes

0 • * 0 0 0 0 0 0

[]

g

[]

[] [] []

1 2 3 4

56

7 8

~-----

Holding

the

SELECTOR

switch @

marked

1111

down,

press

the

PATTERN

CLEAR

button

CD.

ID.C.II

BAR RESET I

PATTERN CLEAR

Press

the

PITCH

MODE

button

(8)

.

PITCH MODE

*

1-1

-

The

indicator lights

up.

Select

the

SELECTOR

switch

marked

1111

(PATTERN

GROUP-I,

PATTERN

SECTION-A).

(As

the

PATTERN

GROUP-I

and

PATTERN

SELECTION-A

have

already

been

selected

in

the

this

need

not

be

changed)

5

6

7

Whilst holding down the

SELECTOR

switch ® marked DOWN, press the

"A"

key-switch. (Refer to

"TRANSPOSE")

0 0

[] []

5 6 7 8

PITCH

I

A

-

According to the Writing Table for

I

PITCH

I,

press the key-switches

in

order.

·:6:

I 0

.

,•

·:6:-

0

c

0

Indicator

"DOWN"

lights

up.

The sound

A,

which

is

one octave

lower, will be heard.

:d.

- -

0

c

D

STEP

J'J')

LJ.J

a

Iii

E

0 0

0

g

[]

Q

[]

1 2 3 4 5 6 7 8

RQimiiDdR

PITCH

A

-

c

E

Press the FUNCTION button

(1).

g

-

19

9

20

.TRANSPOSE

When writing a pitch one octave down (or up) from the keyboard range, press the

SELECTOR

switch @ marked DOWN

(TRANSPOSE

DOWN) or UP (TRANSPOSE

UP)

for moving the range of the keyboards,

then press the appropriate key-switch. The first

"A"

sound of the second measure

is

one octave down from the keyboard on the

panel.

Press the

PITCH

MODE bl,ltton

C8)

.

PITCH MODE

*

1~1

Press the

TAP

button ® for confirmation.

ID.s.l

n:TI

I

WRITE/NEXT

I

TAP

Press the FUNCTION button (Q.

c

-

HOW

TO

USE

THE

WRITING

TABLE

FOR

TRANSPOSE

A (black bar under the pitch letter)

..

represents a note one octave down.

......

holding the

SELECTOR

switch marked

DOWN down, press the key-switch.

A

(black bar over the pitch letter)

... represents a note one octave up .

. . . . . .

holding the

SELECTOR

switch marked

UP down, press the key-switch,

13

14

Press the

TIME

MODE

button®.

0 0 0 0

D

[]

D D

According to the Writing

Table

foriTIME.I press the appropriate switches (SELECTOR

switch @ marked

).

,

and

). , in

order).

_,.

0

D D

Press the

TIME

MODE

button®.

TIME

MODE

•).

~

PATT SECTION

------

(This

can

be

omitted)

Press

the

TAP

button

®for

confirmation.

~

21

Press the RUN/STOP

button®.

If

the pattern

is

wrong, refer to "HOW

TO

CORRECT

(Page

17).

15

16

RUN

6ATTERY

RUN/STOP

If the pattern is correct, stop the

TB-303

9>.'

pressing the RUN/STOP

button ® again.

RUN 0 BATTERY

RUN/STOP

Now

you

have

correctly

entered

two

Bass

PATTERNS

[[]

Complete

the

Bass

·une

of

Four

·Measures

Using

.these

Two

Pattems.

(C

and

Am)

Sample

c

A,

C'-ffl

Score

,.

c

J.

c

I

J.

I r I

r·

J.

r

r·

!PATTERN

GROUP

I I

F

~

22

~;r

r·

f:ll

,.

I

Operation

Stop

the

TB-303

by

pressing

the

RUN/STOP

button.

Set

the

MODE

selector@to

TRACK

WRITE.

MODE

1

~~··

TRACK

o PLAY

WRITE}

PATTERN

Set

the

TRACK

selector ©

to

ill .

ITRACKI

PATT.GROUP

~~0

0~~

2

crn·©·rzh

I W

L{I]o

Result

Operation

Notes

Select a TRACK

In

which

to

write

the

Bass

llne.(Refer

to

the

Operation

Notes)

eTRACKS

A

Track

can

memorize

the

Bass

line

of a

musical

piece

by

combining

several

Bass

Patterns

in

order.

There

are 7 Tracks

all

together

and

they

are

selected

by

the

TRACK

selector © .

The

PATIERN

GROUP

(e.g.

PATIERN

GROUP-I)

of

the

Bass

Pattern

to

be

written

into

the

Track

is

also

decided

at

the

same

time.

23

Press the

BAR

RESET

button

CD.

In

the TRACK WRITE MODE, this

button

simply resets the track to the

ID.c.u

BAR RESET 1

beginning, so that it

is

ready to write

into the first bar of the musical

PATTERN CLEAR

piece.

3

[.J

Any indicators flashing at this stage are not important and

will be

explained later.

Press the RUN/STOP

button®.

The

BATTERY

For convenience, TRACK WRITING

CHECK/RUN

indicator

is

performed while the TB-303 is

RUN~BATTERY

Q)

lights up and the

playing.

Bass Pattern will start to

{The Bass pattern

playing

is

the first

UJ

play.

measure of a previous composition

in

the selected TRACK.)

-

4

RUN/STOP

24

5

According to the TRACK

SCORE,

select the Bass Pattern of the first measure (Press the

SELECTOR

switch -

PAT.

SECTION-A.

..........

C)

*NOTE:

Even

if the Bass Pattern

is already at the selected position, make sure you press the switch again.

Press

the WRITE/NEXT button

®.

l».s.l

6 [[J]

7

I

WRITE/NEXT

I

TAP

Select your Bass Pattern for the 2nd

measure

(SELECTOR

switch #

2,

PAT.

SECTION-A

.....

Am)

*NOTE:

(Even

if the Bass Pattern

is

already being played, make sure you press the switch once

again)

The indicator of the SELECTOR

switch

marked A lights up,

the indicator marked

•

flashes. The Bass

Pattern

in

• will be

played repeatedly.

~

0

c

[]

~

PATT. SECTION

The Bass Pattern will

change.

The indicator of the

SELECTOR

switch marked A lights up, the switch marked

B

flashes, the Bass Pattern written into

# 2

will be played repeatedly.

• HOWTOUSE THE TRACKSCORE

I

PATTERN

GROUP-II

f?

~ ~

[G!l

c-A

J-A

• The letters and numerals

in

a box signify the bass pattern you have selected.

• Letters

in

a circle show the keyswitch you press (refer to operation

10

).

• The letter on the left shoulder of the box shows the Chord name.

• The title shows that all the Bass Patterns are from

PATTERN

GROUP-I.

•

The Bass Patterns line

up

left to

right,

in

order.

When pressing the

WRITE/NEXT button, the selected Bass Pattern (as

in

Operation

5)

will be written into the first measure. At the same time, the TB-303 moves on to the second measure and bar 2 of the previous composition

will be played.

Now you are ready to change bar

2,

if you need

to.

25

9

10

26

Press

the

WRITE/NEXT

button @.

ln.s.l

rr;n

I

WR!TE/NEXT

I

TAP

Select your

Bass

Pattern

for

the

3rd

measure

(SELECTOR

switch #

2,

PAT.

SECTION-A.

.....

Am)

*NOTE:

(Even

if

the

Bass

Pattern

is

already

being

played,

make

sure

you

press

the

switch once

again)

Holding

the

PITCH

MODE

button

(8)

down,

press

the

key-switch

"F".

The

Bass

Pattern

will

change.

* 0

c

[]

__A__j___JL_

PATT. SECTION

THE

PITCH

MODE

indicator @ ,

and

the

).Qdicator

of

key-switch

(Blight

up.

The

Bass

Pattern

of

Am

will

shift

to

Dm.

The

selected

Bass

Pattern

will

be

written into bar 2

and

the

TB-303

is

ready

for

bar

3.

Shifting

the

key

from

Am

to

Dm

by

pressing

the F key-switch

we

refer

to

simply

as

"SHIFTING"

(Refer

to

SHIFTING

on

the

If

you

press

the

wrong

key-switch,

repeat

operation

from 1 0.

Press the WRITE/NEXT button ®

ln.s.l

The Bass Pattern will change.

11

IT'r11

~

The

3rd measure, shifted to Dm

in

operation

10,

will be written into the

memory, and the

TB-303 will

proceed to the 4th measure.

I WRITE/NEXT I

TAP

.SHIFTING

The

written Bass Pattern can be

shifted into any other key you want by pressing the chosen key-switch. This saves a great deal of memory

space

while simplifying the operation

of the

TB-303.

•SHIFTING

AND WRITING

The key of Am (the 2nd measure)

and Dm (the 3rd measure) of the

Sample Score are different, but the organization of the patterns is the same.

So

by shifting the Am Pattern

up,

you have the Dm Pattern.

•HOW

TO

CHOOSE THE KEY..SWITCHES

TO "SHIFT"

CORRECTLY.

The

key-switches, when shifting the

Bass

Pattern, are decided by the

INTERVAL

between the written

Pattern and the shifted Pattern. This

interval is then added to the

TB-

303, but relative to the key of

C.

In

this case, the interval between

Am

and Dm

is

a perfect fourth. When

the

original key is

C, F is

a perfect

fourth from

C,

so select the F

key-

switch. Similarly, to change

an

Am

to

Em,

an

interval of a perfect fifth,

choose the key-switch that

is

a

perfect fifth above

C,

that key-switch

is

G.

This method

is

very simple, although

sometimes

it

can

be

confusing, so

as

an

appedix to this manual, we

have

included a "CHORD SHIFT

SCALE". Please

read the explanation of this "CHORD SHIFT SCALE" carefully.

:.

WiN'ITING

T~~~

.~:lAST

MEASURE

' ' ' '

Writing

the

last

measure

(In

this

example,

Measure

4)

is

a little

different

to

writing

the

12

Select your Bass Pattern for the 4th

measure

(SELECTOR

switch # 1 ,

PAT.

SECTION

.....

C)

*NOTE:

Even

if the Bass Pattern

is already being played, make sure you press the switch once again.

~

0

c

[]

27

Roland TD-303 Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual