Well my Indiana does play in tune pretty ok but when I play a low Bb the harmonics just dont seem in tune with the rest of the horn. The low Bb actually seems slightly flat (but all the other notes are in easy to get in tune) and I'm wondering if this could be from the overtones? getting messed up due to the bent bell. The bell is bent slightly to the side near the top. I even tried to bend it back a little and I think I did manage to a bit but it's still bent and the fundamental Bb still doesn't sound right. I will post a pic soon. Is it possible that this could be fixed?