whalequest.mp3
Here's mine. I'm not going to talk too much about the contrasts, but rather post some interesting things that aren't really relevant to the contest.
The synth is a gameboy emu put through FM and pitch-shifting which gives a nice character to the crackles. You won't hear any sonar. I was afraid this was going to be a problem but I was able to excise it without altering the character of the whale sounds. I guess that's about it.
A good thing I'll say about this theme is that I wouldn't have otherwise done this. Usually if I get an idea like "whale sounds" I just think a) that'll come out worse than I imagine and b) mr. scruff has it covered. But I have to admit to feeling a bit empowered with the way this turned out. (Even if the drums and bass are meh.)