Radiolab S2:E2 Musical Language

I don't know any of the songs in this episode! If you know any the songs used, I NEED YOUR HELP! Leave me a comment with:

1. Artist

2. Song title

3. When it happens in the episode (ex: 22:23-23:01, etc.)

4. Ideally where I can download it (Legally please, lets support the artists who give us such beauty)

Thanks guys!