Ok, so a friend has asked me if I'd play bass for him. He plays trombone and has a gig in a weeks time. Apparently, his bassist can't handle "Birdland" (Weather Report version) so he wants me to stand in for that, and 2 other tunes. Here's my problem - the intro bass riff, you know, the harmonic part - I don't have a problem playing it, but I do have a volume problem where my harmonics are much softer (volume-wise) than the non-harmonic parts. No matter how hard I try, I can't play it louder. Is it me, or is it my bass, or is that normal? Any ideas?