Hello, I have been working on a video game and I would like to add dynamic sound/music. Spasifically I want to do things like choose chord progressions for levels and then when events happen (badguy hits wall, is destroyed ect, which will, of course, happen on tempo) a note is played from a list for that kind of event such that it would fit the current key signature. Ideally, I could choose insruments (ie zippy red badguy is flute) and give each level a different feel (for example jazz, rock, latin). Also,I would also like to have things that take a continuous signal (say speed of the player's ship) and then mapps that onto a continuous weighted function so that, while it hits all frequency's on the  way up it "lingers" near the correct notes. (this in addition to a background beat) Of course, as I am making a game, in an ideal world, it would not eat up too much processing power (right.....). I have looked and the choices for sound libraries seem a little overwhelming. I was wondering if anyone had done somthing like this and could reccomend a method/library/tell me that this is too hard a problem.
Thanks
Benjie

if midi music is ok for you, why not testing ProMidi?