Hi guys, i have a pretty big problem here. I've had this problem for a while, but now it's really important. With the biggest seating audition i've ever had coming up in a few weeks, i have to ensure the intonation between my R13 Bb and my E11 A clarinet is as close to perfect as possible. All this year, i'm gonna be playing with an AMAZING youth orchestra, which happens to tune to american pitch. for those of you who don't know, R13 (my Bb) tunes to american pitch, but the E11 (my A) tunes to EUROPEAN pitch! what's the best way to easily fix this problem, and ensure both these instruments are in tune with my orchestra? My conductor is a real hard-*****, and one of his pet-peeves is poor intonation. Money isn't a big issue. HELP!!!!!!!!!!