Various composers have made settings of the 15th
century smash hit Tandernaken (http://en.wikipedia.org/wiki/Tandernaken).
They have in common that they can have rhythmically
very independent parts. The idea is that the bass
holds down the harmony, while being of course
melodically interesting; the actual melody is in a
middle voice, and the top voice plays some wild
improvisation over it.
I'm playing one of these Tandernaken settings, written by
or at least attributed to Henry the eighth, with a local
ensemble, Passing Measures. But I need practice, so I
thought I'd record the backing tracks so that I could play
against them. And then things got a little out of hand....