Our trio has a guitar/tenor banjo, a keyboard and a viola. The keyboard has a "capo" on (in?) it, so we can wind up playing three different progressions if the keyboard moves up three and plays a G progression, the guitar capos at the first fret plays an A progression, and the viola is in Bb (she just loves that). So we're constantly transposing chords, depending on the sound we're trying to get.

Well, at least we always know whose songbook is whose...

Sarah