ADVANCED HYMN PLAYING KEYBOARD HARMONY WORKBOOK - Level 7 is correlated to ADVANCED HYMN PLAYING IN BASIC CHORALE STYLE - Level 7 of the DAVID CARR GLOVER SACRED MUSIC LIBRARY for Piano. The two books should be used together. As stated in the title, this is a keyboard harmony book in addition to being a workbook. Material to be written by the student MUST also be played at the piano. It is most important that he/she hear and play what he/she has written.