Hi Dennis - yes, the moving bass line in my Bach arrangement is metronome-ish - which is what I wanted my initial foray into the piece. I did create a reasonably interesting counterpoint in terms of bass melody (I hope), which makes it a little less like a click track.

I'm currently looking at the Prelude from Cello Suite No. 1 in G - no bass line for this one because the bulk of the piece is constructed on a lovely arpeggiated chord sequence - including a bass line which tells its own story. There's also a very important pause/accent about 2/3 of the way through, which precludes a constant rhythm.