This page is read from MIDI Instrument Definitions, a Python library used in the author's other projects, in which every number is traced to a document its maker published. Its source is on GitHub.

Voce ELECTRIC PIANO MIDI implementation

The MIDI implementation of the Voce ELECTRIC PIANO: what it answers to, and the 8 controls it offers.

At a glance

Firmware: Not recorded.
MIDI channel: Any one of 1 to 15.
Parts: Multi-timbral Part, 3 of them: on 3 MIDI channels in a row from the base, taking notes and program changes.
Voices: 16 or 32, as set on the instrument.
Note range: Not recorded.
Velocity: Received.
Aftertouch: Not recorded.
Pitch bend: Not recorded.
Program change: Received, with 32 presets.
MIDI clock: Not recorded.
Start and stop: Not recorded.
Control change: 8 controls, in the tables below.
NRPN: Not recorded.
System exclusive: Not recorded.

Controls

In the order the definition gives them, by group. Under each control is the name a program calls it by, once pymidiinstrumentdefs.load("voce/electric_piano") has loaded them.

Volume

Control	CC	Values
Volume `volume`	7	0-127

Tremolo and chorus

Control	CC	Values
Rate `rate`	94	0-127
Depth `depth`	91	0-127
Chorus `chorus`	80	0-63 `off`, 64-127 `on`
Tremolo `tremolo`	81	0-63 `off`, 64-127 `on`

Wah-wah

Control	CC	Values
Wah-wah On `wah_wah`	82	0-63 `off`, 64-127 `on`
Wah-wah Frequency `wah_wah_frequency`	1	0-127
Auto Wah-wah `auto_wah_wah`	83	0-63 `off`, 64-127 `on`

Where these facts come from

Source documents

VOCE® Electric Piano Manual, a web page, read on 13 September 2026.

How they were read

Product manual, 9 pages: the front and rear panels at pp. 2-3, presets at pp. 6-7, OMNI ON and multi-timbral modes at pp. 7-8, the MIDI Controlled Effects table at pp. 8-9, and the specifications at p. 9. The unit also shipped with a separate printed MIDI implementation chart, which is not among the files; everything below is from the manual itself.

NOT RECORDED: note range and clock, which the manual does not mention.