TubeNet

Says the PVC one wieghs only 7 kilos. Wonder what the metal one weighs? The audio demo sounds neat. I just like the sound of a contra anything, but that guy has to breathe more often than I do. Wonder what that little microphone looking thingie is right next to the mouthpiece on the PVC model?

If you find tubas impractical, then have a look here:

http://www.youtube.com/watch?v=ospGzeUncmI

A couple of texts:

http://www.lowflutes.com/files/Hogenhui ... _flute.pdf

http://en.wikipedia.org/wiki/Hyperbass_flute