Re: Martin Bb Soprano Tuning - Dumb ?
What kind of tuner are you using? Is the tuner set to Bb pitch? If it's set to concert C (A=440) pitch, an A WOULD be a G on a Bb instrument. Remember, you're in the key of Bb, so therefore you a 2 chromatic steps BELOW C! So play an A, subtract 2 chromatic steps, and there's your G!