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MIDI, the Musical Instrument Digital Interface, is a world-standard communication interface that allowsMIDI-compatible musical instruments and equipment to share musical information and control one another.This makes it possible to create systems of MIDI instruments and equipment that offer far greater versatilityand control than is available with isolated instruments.The PDP-400 has 11 MIDI functions that are accessed by pressing the appropriate VOICE selector whileholding the [MIDI/TRANSPOSE] button. The MIDI functions accessed by the various VOICE selectors areshown in the following chart:Function Selector1. Send Channel Select PIANO2. Receive Channel Select CLAVINOVA TONE3. Local ON/OFF E. PIANO4. Program Change ON/OFF HARPSI5. Control Change ON/OFF VIBES6. Multi-Timbre Mode ON/OFF GUITAR7. Split Send Mode STRINGS8. MIDI Clock Select ORGAN9. Panel Data Transmit CHOIR10. MIDI Transpose Transmit UPRIGHT BASS11. DOC Common Voice Mode ON/OFF ELEC BASSThe available settings and procedure for each MIDI function are described below.MIDI Functions
Send and Receive Channel Select
In any MIDI control setup, the MIDI channels of the transmitting and receiving equipment must be matched forproper data transfer (there are 16 MIDI channels). An “OMNI” receive mode is also available, which allows receptionon all 16 MIDI channels. In the OMNI mode it is not necessary to match the receive channel of the receiving device tothe transmit channel of the transmitting device.
ZHold [MIDI/TRANSPOSE] and press [PIANO] to set the send channel or
[CLAVINOVA TONE] to set the receive channel.
XUse TEMPO [] and [] buttons to select the desired channel (the selected
channel number is shown on the TEMPO display — the OMNI ON receivemode is indicated by “ALL” on the display).
CRelease [MIDI/TRANSPOSE].
NOTES
When the power is initially turned ON, MIDI receive is set to the OMNI ON modeand the transmit channel is set to 1.

S1...... S16

Send channel

r1...... r16

Receive channel

ALL

OMNI ON
NOTES
Always use a high-quality MIDI cable to connect MIDI OUT to MIDI IN terminals.Never use MIDI cables longer than about 15 meters, since cables longer than thiscan pick up noise which can cause data errors.When using the PDP-400 with other MIDI equipment, always refer to the MIDIspecifications (implementation chart and MIDI data format) of the equipment usedto ensure compatibility.
TAP TEMPO
METRONOME
SONG NUMBER
MAX
MIN
MAX
MIN
MAX
MIN
MIN MAX
VARIATION NORMAL
INTRO/ENDING
START/STOP
AUTO BASS CHORD
SOLO
STYLEPLAY
SYNCHRO
START
SINGLE FINGERFULL KEYBOARD FINGERED
JAZZ
ROCK
POP DANCE
POP 16BEAT
BALLADROCKN
ROLL
ROCK
SHUFFLE
SWING
BOOGIE
BIG BAND
SAMBA
BOSSA
RHUMBA
CHA-CHA
POLKA
MARCH
JAZZ
WALTZ
WALTZ
BLUE-
GRASS
STYLE
POWER
HOUSE16BEAT
POP 16BEAT
SHUFFLE
SLOW
ROCK
COUNTRY
SHUFFLEDISK
STYLE 1
DISK
STYLE 2
JAZZ
BALLAD
PIANO E.PIANO HARPSI VIBES GUITARSTRINGS SPLIT
ORGANCHOIR UPRIGHT
BASSELEC
BASS DRUMSVOICE 13-60
CLAVINOVA
TONE
VOICE
8
1234567
90
DISK ORCHESTRA / PERFORMANCE MEMORY
PHRASE
REPEAT
CHORD
SEQUENCE
REC FORMAT
COPY
PAUSE
F F
REW
START/STOP
SONG
SELECT
RIGHT/1TRLEFT/2TR ORCH/3-10TR RHYTHM
/
DISK CONTROL
GUIDE
COSMIC
HALL 2
HALL 1
ROOM
SOLO STYLEPLAY
START/STOP
SOSTENUTO
REVERB
DEMO
SOFT
MIDI/
TRANSPOSE
MASTER VOLUME
RHYTHM CHORD 1CHORD 2
BASS
AUTO ACCOMPANIMENT
BEAT
FOOT SWITCH
PIANO E.PIANO HARPSI VIBES GUITAR STRINGSORGAN CHOIR UPRIGHTBASS ELECBASSCLAVINOVATONE8123456790MIDI/TRANSPOSE