Re: [fluid-dev] Patch for channel_type, also XG drum-channel autoswitch

[David Henningsson]

Hey jimmy,

Thanks for the research. I've committed the patch now (with some trivial 
changes). Thanks for your contribution!

And to the rest of you - this bank select handling seems to be a never 
ending debate, and it's not my area of expertise, so let me know if this 
change screwed something up for you.

// David

On 2011-02-03 01:08, jimmy wrote:
> It seems MSB of 127, 126, 120 have been used for Yamaha/XG drum kits.
>
> For PSR-2000 keyboard, [MSB,LSB,Prog] for MSB 126:
>
>     [127,0,xx]  Various drum kits
>
>     [126,0,0]  SFX Kit1
>     [126,0,1]  SFX Kit2
>     [126,0,35]  Arabic Kit
>
> For PSR-S900 (similarly in Tyros-2, Tyros-3):
>
>     [127,0,xx]  Various drum kits
>
>     [126,0,0]  SFX Kit1
>     [126,0,1]  SFX Kit2
>     [126,0,35]  Arabic Kit
>     [126,0,40]  Cuban Kit
>     [126,0,43]  PopLatin Kit
>
>     [120,0,0]  Standard Set
>     [120,0,8]  Room Set
>     [120,0,16]  Power Set
>     [120,0,24]  Electronic Set
>     [120,0,25]  Analog Set
>     [120,0,32]  Jazz Set
>     [120,0,40]  Brush Set
>     [120,0,48]  Orchestra Set
>     [120,0,56]  SFX Set
>
>  From the drum key/sound mapping list, it seems that, for MSB=127:
>
>     [127,0,0]  Has full set of drum sounds
>     [127,0,xx]  Has sparse set (some note/key has no sound), so it would fall 
> back to the sound from the full [127,0,0].
>
> Similar mapping scheme for MSB=126, as well as MSB=120:
>
>     [126,0,0]  Has full set of drum sounds
>     [126,0,xx]  Has sparse set
>
>     [120,0,0]  Has full set of drum sounds
>     [120,0,xx]  Has sparse set
>
> Seems like a "fall-back" sound lookup scheme, similar to the non-drum voices.  
> So if key/sound for MSB=120 could be found with:
>
>     [120,0,xx] if not found, try:
>     [120,0,0]  if not found, try:
>     [127,0,0]  always there, this is also GM-drumkit.
>
> Like-wise, with MSB=126 drum sound:
>
>     [126,0,xx] if not found, try:
>     [126,0,0]  if not found, try:
>     [127,0,0]  always there, this is also GM-drumkit.
>
>
> PDF manuals for the keyboards are available online if folks want to take a 
> closer look.
>
> Jimmy
>
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