finding new music (someone implemented what i wanted)

There's a different licensing scheme between users choosing songs and users having songs chosen for them, with the latter, obviously, being cheaper. As to the ease of downloading the songs, I don't think there's any legislation that states how easy it is to get copies of the songs that have been played for you. After all, it's pretty easy to tape off the radio.

This is very cool. Thanks.

Huh. Sometimes it plays a song, citing as a reason that it's got "Major Key Tonality" and other songs because they have "Minor Key Tonality". Now, given that those are really your only two options (I suppose it could have no tonality, but that would be an immensely boring song), how can it be using both as reasons? It'd be like TiVo suggesting things because they're B&W and other things because they're in color. In other words, "everything" is not a useful criterion, even if you specify it as two complementary sets.

Wow... this is fairly interesting. I tried something I thought would be moderately obscure, "The Book I Read" by Talking Heads. It countered with a thoroughly accurate description of the song and countered with ZZ Top "Cheap Sunglasses" and Bob Dylan "Neighborhood Bully". Very interesting choices...

I don't know if this has been mentioned here, but I noticed the 5.1 version of Winamp has something called "MusicMagic Mix" in the media library. It seems to work like Moodlogic did, but appears to be free. It only works on your personal collection and can make purchase suggestions. One thing I found very interesting is if you run it on it's "low variation" setting you get a very accurate playlist that gets very boring after a few songs...