GG's performances of his own works?

[Christy Leung <christle@unixg.ubc.ca>]

Hello!
 
I recently picked up an album of Gould's compositions on the Sony 
Classical label, which consists of the Lieberson Madrigal, the String 
Quartet Op. 1, 2 pieces for piano, Sonata for Bassoon and Piano, an 
unfinished Piano Sonata and "So You Want to Write a Fugue?".  I was 
wondering if anybody knows of any recordings, on video or audio, of the 
piano sonata, bassoon sonata and 2 pieces for piano done by Gould 
himself.  Can anyone help me?
 
Thanks!
Christy
christle@unixg.ubc.ca