John, Geoff and S&R — thanks a bunch. I guess I had never twigged on the fact that other sections of the band were playing from scores written in different keys, so I certainly couldn't figure out what was going on there. Since my band director used trumpet leads for most things, I just assumed that whatever key the trumpet score was written in would be the key the whole group was using.

I had long since gotten rid of my trumpet by the time I started playing other instruments, so I never cross-referenced the sounds/keys to discover how that worked.

Thanks for solving a long-standing mystery for me.

cheers,

david