I think it would be more interesting to play a lower pitched instrunment because you dont have to worry as much about loosing yoyr breath while you are playing because you dont have to blow enough air into the instrument as you would have to with a higher pitched instrument. If you are playing a higher pitched instrument you have to blow more air and you have to blow in it more stronger so the pitch would stay constant! now, if you were playing a lower pitched instrument you wouldnt have to blow that hard into the instrument.