First post has a lot of good recommendations from the 20s that I stand by. I'd rewrite most of the second post, though. I'll just do an overview here of what I'm familiar with:
30s -- swing/big band, western swing, acoustic/country/delta blues
40s -- western swing (cont), electric blues, honky-tonk, bop, vocal groups (less familiar)
The oil industry is filled with examples of people not "knowing" exactly what they were doing. Choosing to drill in a given location often included the possibility that there was actually no oil/gas to be had...that the well would end up being a "dry hole."
I noticed you're asking your users to enter a vimeo URL by hand. I know that during signup it's impractical to bounce the user over to vimeo to authenticate, but once the user is signed up do you give them the option of picking the video from their albums instead of entering a URL?
It looks at the "body content of any web page" and translates that, so the correct question to ask would be "What does the website look like for Beethoven's Ninth?"
Also, news.ycombinator.com doesn't work on it, must be blocking it =(