I just got my soprano today, and it's great! I know how to play 2 scales (thanks to my tenor friend) and I'm doing ok, obviously note the best tone, I have been playing for a day. Anyway, I was trying to practice the low c(middle c) and it comes out sounding like "waa waa waa waa..." first of all, is the normal? If it is at first, then have any advice to hit the low notes? Thanks!