I tested a bit yesterday evening too:
Mana Khemia have a Speedup for more playable and i found out when i overclock to max can i use Frameskip and buffered rendering with both on and play very very fine,but at 1.1 ghz and normal sysspeed have i the buffered Rendering hangs again.
Seem to much processor gaining Games bringst the buffered rendering to errors when i use frameskip with that too.
Have you tried once to Compile with timidy installed?
Maybe we have then Backround Music in Games
Gta Vice City is still unplayable but
Tales of Eternia work now very fine,yehaaah thx.
Mario Homebrew have no Sound Errors more but i have in
Trailblazer now little Sound Error.
A a tune while playing.
This evening will i try more.
Maybe you find a way for Backround Music in Games
And sorry for that bad english