ZOOM file editor

Project file format

data	start	length
header	0	48
is_protected	49	1

unknown data chunks (8 * 4 bytes, 64 - 256)

address	value
64	8
84	255
96	96
100	88
108	93
112	103
116	97
644	74

start
64	8	0	0	0	0	255	0	0
96	96	88	0	93	103	97	0	0
128	2	2	2	2	2	2	2	2

8 tracks (256 - 640)

[1, 12, 0, 12, 1, 14, 4, 12, 1, 5, 0, 12]

file names (648 - 2952)

• name length: 256 bytes (filled with zero bytes)
• 9 name slots

other unknown data (mostly pairs)

start	offset
2956	0	255	255
3004	48 (12 * 4)	8	0
3108	136 (34 * 4)	3	3
3116	8 (2 * 4)	100	100
3140	24 (6 * 4)	50	50

last(?) bytes

position	data
3772	80	*
3773	62	*
3776	255 255 255 255	*

extra data (3780 - 7675)

position	data
4568	1
4580	1
4592	1
4596	4
4600	164 3	*
4604	2
4608	4
4612	50
4620	50
4624	0	*
4884	5
5088	232 5	*
5096	1
5100	1
5104	4 2	*
5304	36	*
5308	2	*
5312	1
5316	1
5320	237 4	*
5520	12	*
5524	2	*
5528	1
5532	1
5536	121 3	*
5736	12	*
5740	2	*
5744	1
5744	1
5748	1
5752	157 3
5952	84
5956	2
5960	1
5964	1
5968	160 4
6168	72
6172	2
6176	1
6180	1
6184	9 5
6388	1
6392	1
6400	176 4
6604	1
6608	1
6616	176 4

Sequence file format

• header: 48 bytes

sequencer note syntax:

starts at byte 48

note parameters in 4 bytes:

1. length fraction
2. length whole notes
3. ???
4. channel number (255 means step to the next note)

4 consecutive 255 means end of data

end of file pattern: 06 00 ff 00 00 00 00 EOF

note length codes

note	value
1	192
3/4 (1/2 .)	144
2/3 (1T)	128
1/2	96
3/8 (1/4 .)	72
1/3 (1/2T)	64
1/4	48
3/16 (1/8 .)	36
1/6 (1/4T)	32
1/8	24
3/32 (1/16 .)	18
1/12 (1/8T)	16
1/16	12
3/64 (1/32 .)	9
1/24 (1/16T)	8
1/32	6
1/48 (1/32T)	4
1/64	3
1/96 (1/64T)	2