Six-trak MIDI Implementation - partial. (December 28, 1983)

Received Data

STATUS		DATABYTE #1	DATABYTE #2
(hex/binary)

Bn/ 1011 nnnn	parameter #	parameter value		Parameter Change
							(if enabled)

Bn/ 1011 nnnn	01/ 0000 0001	mod amount		Modulation amount
							(if enabled)

Bn/ 1011 nnnn	7A/ 0111 1010	00/ 0000 0000		Local off

Bn/ 1011 nnnn	7A/ 0111 1010	7F/ 0111 1111		Local on

Bn/ 1011 nnnn	7B/ 0111 1011	00/ 0000 0000		All notes off

Bn/ 1011 nnnn	7C/ 0111 1100	00/ 0000 0000		Omni Mode off,
							All notes off
							(Mode 3)

Bn/ 1011 nnnn	7D/ 0111 1101	00/ 0000 0000		Omni Mode on,
							All notes off
							(Mode 1)

Bn/ 1011 nnnn	7E/ 0111 1110	00/ 0000 0000		Mono Mode on/
							Poly mode off,
							All notes off
							(Mode 4)

Bn/ 1011 nnnn	7F/ 0111 1111	00/ 0000 0000		Poly mode on/
							Mono Mode off,
							All notes off
							(Mode 3 ?)

----------------------------------------------------------------------

SYSTEM EXCLUSIVE

(hex/binary)

Program Dump request:

	F0/ 1111 0000	(SysEx start)
	01/ 0000 0001	(SCI id)
	00/ 0000 0000	(Request)
	pp/ pppp pppp	(Program #)
	F7/ 1111 0111	(SysEx end)
----------

Program Dump Receive:

	F0/ 1111 0000	(SysEx start)
	01/ 0000 0001	(SCI id)
	05/ 0000 0101	(SixTrak id)
	pp/ pppp pppp	(Program #)
	data		(16 bytes, transmitted as 32 4bit nibbles.
			 See table 1, page 10)
	F7/ 1111 0111	(SysEx end)
----------

Select Double Mode:

	F0/ 1111 0000	(SysEx start)
	01/ 0000 0001	(SCI id)
	7B/ 0111 1011	(Select Channel)
	0c/ 0000 cccc	(channel #)
	F7/ 1111 0111	(SysEx end)

[This message sets the basic MIDI channel to 'c'. It also enables wheels,
program change, and parameter change send/receives and selects Mode 4
(Omni off/mono on).]
----------

Wheel enable:

	F0/ 1111 0000	(SysEx start)
	01/ 0000 0001	(SCI id)
	7C/ 0111 1100	(Enable)
	0v/ 0000 vvvv	(Voice #)
	F7/ 1111 0111	(SysEx end)

[If Mode 4, enables wheels on voice 'v'.]
----------

Wheel disable:

	F0/ 1111 0000	(SysEx start)
	01/ 0000 0001	(SCI id)
	7D/ 0111 1101	(Disable)
	0v/ 0000 vvvv	(Voice #)
	F7/ 1111 0111	(SysEx end)

[If Mode 4, disables wheels on voice 'v'.]
----------

Enable all MIDI send/receives:

	F0/ 1111 0000	(SysEx start)
	01/ 0000 0001	(SCI id)
	7E/ 0111 1110	(Enable)
	F7/ 1111 0111	(SysEx end)

[This forces all send/receives to be enabled, including wheels, program
changes, and parameter changes.]

----------------------------------------------------------------------

Six-trak parameter table:

Controller #	Parameter name		# of bits
					resolution

1		Mod wheel		5
2		Osc coarse freq		6
3		Osc fine freq		5
4		Osc glide rate		4		
5		Osc LFO (off/on)	1
6		Osc env amount		4
7		Osc env invert		1
8		Osc env attack		4
9		Osc env decay		4
10		Osc env sustain		4
11		Osc env release		4
12		Osc sawtooth		1
13		Osc triangle		1
14		Osc pulse		1
15		Osc pulse width		6
16		Osc pulse lfo mod	1
17		Lfo freq		4
18		Lfo prog amount		5
19		Lfo tri/square wave	1
20		Osc/noise mixer		5
21		Filt cutoff freq	7
22		Filt resonance		6
23		Filt env amount		4
24		Filt env invert		1
25		Filt env attack		4
26		Filt env decay		4
27		Filt env sustain	4
28		Filt env release	4
29		Filt lfo mod		1
30		Filt keyboard amount	2(off/half/on)
31		Filt-osc tri mod amount	6
32		Amp attack		4
33		Amp decay		4
34		Amp sustain		4
35		Amp release		4
36		Voice volume		4
37		Unison			1

All controller data (apart from the Mod wheel) is Left justified (ie a 1
bit number actually toggles between 0 and 64 rather than 0 and 1)