TY  - BOOK
AU  - Harder, Paul O.  .
TI  - Basic materials in music theory: a programed course / 
SN  - 0-205-17205-9
U1  - NR 
PY  - 1995///
CY  - Massachusetts 02194 : 
PB  - Allyn and Bacon , 
KW  - Music- Theory
ER  -