Hello to everyone. Help me, please! The thing is I have bought the bassoon called "mollenhauer" 3000 model and It's note "a" in tenor joint so high. When I trying play this note by piano It's sounds pretty clean. But when by forte - It so out of tune, It's so high, that all of that just dissapoint me ... All pads on each joint setted sealed way and there is leaking of pads nowhere... I tried use another bocal for example Heckel but all It in vain .. What could It be? Thank for helping!