Either a Bb or Eb horn would work well for the groups you mentioned. If parades and dixie music are likely to be a good part of your playing then an Eb sousaphone or even a helicon would be a great choice, although the latter will be somewhat hard to find. An Eb tuba would work well for quintet and would even work for community band, although depending on which one may not have the breadth of sound to carry a band as the only tuba player.Jonathan wrote:... should I start on the Bb or look for something else? I plan to play in a community band... some parades...and possibly some dixie playing or quintet playing in the future. ...
There are lot's of 3 valve Eb tubas around that can be had for less than $1000 in playable condition. 3 valves will limit your range as a beginner especially, but should be able to cover most of the parts you will encounter. A 4 or 5 valve Eb will be more expensive, but would be a good all-around horn.
The nice thing about going with an Eb is that the fingerings are the same as what you are used to playing trumpet. The Eb in bass clef is where you are used to seeing a C in treble. Of course this really is a crutch, and the accidentals may be more accidental than you want, so I think you are better off really learning bass clef, but this is one way to pick up playing tuba relatively quickly.