Specifications

APPENDIX C

NIGHTBASS MIDI MESSAGES

The NIGHTBASS responds to the following messages:

Program change:

Cxh ddh

x = channel number 0h to Fh for channels 1 to 16

dd = program number 0h to 7Fh or 0 to 127

If the channel the NIGHTBASS is set to is not off and the channel matches (either

it is the same number or OMNI is on), then the unit will look up the preset in

the MIDI Program Table (MPT) and recall the corresponding preset.

Channel Mode message for OMNI on/off

Bxh 7Ch 0h : OMNI Mode Off

Bxh 7Dh 0h : OMNI Mode On

x = channel number, 0h to Fh for channels 1 to 16

If the channel matches the units's channel number, it will set the OMNI mode

accordingly. The current OMNI mode does not affect this message, the channel

must match regardless of current OMNI mode.

SYSTEM EXCLUSIVE MESSAGES

message format:

general: <System Exclusive Status> <ART ID> <channel>

in hex: F0h 1Ah 0xh 12h <message ID> <message...> F7h

F0h - System Exclusive status byte.

1Ah - ART manufacturer's ID number.

0xh - channel number, 0 to 0Fh.

13 - NIGHTBASS product id code.

F7h - End Of exclusive status byte.

Message ID values >= 40h are requests. A request is a message that when received

by the NIGHTBASS causes a message to be sent by the NIGHTBASS.

0x is the channel number, 0 to 15 (00h to 0Fh). To the user, the channel number

is displayed as 1 to 16.

Internally, presets are numbered 0 to 199. When a preset number is displayed, it

is shown as 1 to 200. Any messages that refer to the NIGHTBASS preset number

refer to the internal number, 0..199. Preset numbers are referenced in message

with 2 data bytes, least significant 7 bits, then most significant bit in the lsb

of the next byte. Example: preset 1 on the LCD is referenced with 00h 00h, and

preset 200 is referenced with 47h, 01h.

When channel number is OFF and a front panel command for a dump is processed, the

NIGHTBASS sends a message coded for channel 1 (the lowest channel number).