Here's a perfect example. Red China Blues from Get Up With It sounds like it might, as the title suggests, actually be a blues number, albeit one in lopsided 6/8 time. But before long it's sounding more like a big band piece, and by the end it's almost certainly funk. The whole thing is punctuated by Miles' stabbing wah-wah trumpet, and you can't help feeling that there were probably three perfectly serviceable songs in there somewhere before he decided to mash them all together. Enjoy!
Miles Davis - Red China Blues