Jerry Blackstone and the University of Michigan Men's Glee Club covers topics such as music-based choral tone including repertoire and the musical challenges inherent therein determining the vocal precedures needed to communicate the composer's intent. Also rehearsal warm ups which utilize different timbres and which present particular challenges for the singing male such as tessitura, register changes and vowel color. Intonation issues are also addressed with a discussion followed by a demonstration of warmups and rehearsal techniques.