day before a performance which is early in the morning. its 9pm and how am i supposed to find a repairman at this hour? a friends flute has a problem with the foot and playing a c. its almosyt as if you need a clamp to hold down the keys to play a low c. it doesnt look like theres a leak at all, especially since i just had it adjusted last week. if there isnt a lot of pressure holding the keys down (namely the first one) the c barely comes out. how should it be fixed, just until the performance is over?