I took a recording of that balloon bass (
http://www.balloonbass.com/recordings.html) and tried making a little jam out of it (I used the song "Broken Hearts at the Depot").
Here it is:
http://www.gregjazz.com/upload/balloonbass.mp3
Sorry about my guitar playing. I jammed my ring finger of my fretting hand, and it hurts like all-get-out, so it was pretty difficult to play with agility and accuracy with that going on. Anyway, that's the disclaimer, enjoy the tune!
