What voices should be used for styles and midis distributed to other users?
For distribution of midis to non PSR users, use GM voices. For PSR users, while XG voices guarantee the widest compatibility, panel voices have the advantage of built in effects and a generally higher quality. The panel voice assignments of the PSR are very similar and often identical. If you use the common panel bank (LSB =112), any reasonably modern PSR should not have a problem. When an instrument encounters it doe not have (sweet voices are a good example), most PSRs will substitute something very similar, at worst a XG voice. Generally it is preferable to use Panel voices wherever they sound the best. The program MidiPlayer allows the voices used in any midi or style to be tailored to the PSR/Tyros, sound card or softsynth.