TubeNet

I don't know of any, but maybe he could help:

http://www.tntech.edu/MUSICANDART/facul ... orris.html" target="_blank

If you have not done it, it would also be quite beneficial to find a recording of the original solo instrument...

You do NOT need a tuba recoring for this.

Wasn't this one originally written for Oboe or Violin (viola?)

http://www.youtube.com/watch?v=ifYsXbJK_Ps" target="_blank

Why not listen to a recording of the instrument it was written for, you will probably learn more about phrasing and style from them rather than a tuba player