I have the first "They Might Be Giants" album on CD, which contains the song "Don't Let's Start".

I also have a copy of the song that was downloaded from somewhere I don't remember.

The two songs seem to be pretty much the same recording. However they have two almost completely different mixes. There are different amounts of emphasis on different instruments, and different amounts of reverb and processing on each track.

Interestingly, the "don't know what origin" track sounds orders of magnitude better than the one from the CD. It's more in-your-face, more fun, more listenable, and all around more enjoyable.

Does anyone know where this alternate mix came from? Is there some other release of the first album with better mixes or something?