TY  - MUSIC
AU  - Bach, Johann Sebastian
TI  - Keyboard practice consisting of an Aria with thirty variations: for the harpsichord
U1  - 786.4 
PY  - 1938///
CY  - New York
PB  - G. Schirmer
KW  - VARIACIONES (CLAVECIN)
KW  - VARIACIONES (PIANO)
KW  - MUSICA PARA CLAVECIN
ER  -