Good album, haven't listened to it for years! Sounds fine to me. Are you sure it's not just a snare drum you're hearing? ;-)
I have had some issues with corrupted files on Spotify. Sometimes it just goes away on its own after a day or so, sometimes it's necessary to completely reinstall Spotify (tends to happen a lot on the iPad app).
I'd maybe try going into playback settings and make sure you have high quality enabled. If you already do, set it to low quality and force a re-download. Then, from low-quality, set it back to high quality and force a re-download again. On the desktop client you can just clear the cache:
http://lifehacker.com/how-to-clear-y...pac-1357912561