What Tuba "should be played" or what tuba did the composer "intend"?
Now......I believe there is quite a difference between a bass tuba and a contra bass tuba's sound. I liken tuba's to this.
Bb Tuba sounds closely to a CC tuba Bb Clarinet sounds very similar to A clarinet
Eb Tuba and F tuba...(can sound close) Eb clarinet
Now, the contrabass tubas definitely sound different than the bass tubas. And the Bb clarinet sounds very different than the Eb clarinet. This could be considered a stretch..but
I am going to assume that a "great" composer is educated on these differences. If the composer writes Bass tuba in his score, why is it we can decide to grab the other horn. Especially assuming there is such a difference between bass and contrabass horns. Wouldn't it make sense, that if the composer has specified what horn to use, that we use that horn? Generally you don't see a Bb clarinet player grabbing his Eb clarinet or vice-versa just because it may be easier or "sound better".
I know this is a great stretch of the imagination, but I tend to think that the labeled part is probably labeled such for a reason. The composer most likely didn't just write 'contrabass' or 'bass', simply because he felt like it.
Now....there of course is also tradition...such as the famous Meistersinger... F versus CC tuba. I'm not here to debate with tradition, only to ask that if a composer wrote 8 or 9 or 10 fabulous symphonies, and some specified 'contrabass' or some 'bass', why is it so easy for us as tuba players to dispense with their intention and say we know better.





