Gödel, Escher, and Bach (Spring 2001)
Music for Tuesday, Jan 30

Two-Part Invention #4 in d minor (JS Bach)
(click above to listen)

A two part invention is a musical conversation between 
two voices (which could be instrumental voices). 

In this case, the upper voice enters first, 
then the lower voice on the same theme an octave down.

(Piece realized by John Sankey)

MIDI sequence(s) from the Classical Archives, by permission