ISBN 9781470642105 books & textbook
Harmony Handbook: Repertoire and Resources for Developing Treble Choirs, Enhanced CD
O'Connor-Ballantyne, Katie Beck, Andy Gilpin, Greg Albrecht, Sally K.
Alfred Music /2019-05-01 Audio CD / 999 Pages
isbn-10: 1470642107 / isbn-13: 9781470642105
