Emu XL-7 & MP-7 User's Group

Excellent!!!!!!
Kudos to atom for posing the question, Aaron for providing (as usual) 
the needed tips, and both for advancing the OS2.0 sysex knowledge 
base in this forum. 

--Steve

--- In xl7@yahoogroups.com, Atom Smasher <atom@...> wrote:
>
> cool...
> 
> this works to select a new pattern:
>   F0 18 0F id 55 01 08	// sysex header, command, count
>      07 21 pp bb		// choose next pattern
>      04 21 pp bb		// confirm next pattern
>   7F F7			// checksum, EOX
> 
> this works to select a new pattern with "mute hold":
>   F0 18 0F id 55 01 10	// sysex header, command, count
>      07 21 pp bb		// choose next pattern
>      79 20 01 00		// "tap" press
>      04 21 pp bb		// confirm next pattern
>      79 20 00 00		// "tap" release
>   7F F7			// checksum, EOX
> 
> id = system id
> pp = pattern
> bb = bank
> 
> based on my understanding of the sysex docs, this works in
> abbreviated form (all within a single sysex message) only because
> all of the "commands" are 0x01 (parameter value edit). 
> for anyone experimenting with this, pay attention to the last 
> byte-pair on the first lines (0x08 & 0x10) which are counters,
> telling the command station how many byte-pairs of data to expect.
> also note that the "7F" checksum means "ignore checksum".
> 
> i do think it's bizarre that the "choose" and "confirm" are two
> separate commands, but both require the pattern and bank to be
> specified.
> 
> thanks aaron!!!
> 
> 
> -- 
>          ...atom