On the topic of music styles, at GDC a few years back (07), the musicians behind some of the classic nintendo games (super mario, zelda, etc) talked about the resurgence of MIDI to replace the static, audio recorded themes. Instead, using high end synth samples, the MIDI will be able to tell what the player's condition is (low health, time running out, etc) and choose the 4 to 8 bar theme to play, and add and drop instruments in to make variations.
This is part of what you are discussing, as music used to be whole chunks of big orchestral recordings. Now everything is done in 4-8 bar bits of MIDI, using a range of high quality synth samples. While this can still produce great music, it takes more engineering than musical composing, so it has to be done right to make sense. If you've ever created audio loops in a sound program, you know how this is - if your loop segment isnt perfect, it sounds like a loop. If you have it spot on, it sounds like one continuous performance







