Laboratory, four hours. Enforced requisites: courses M6A, M6B, M6C. Course 102A is enforced requisite to 102B, which is enforced requisite to 102C. Students must receive a grade of C- or better to proceed to next course in sequence. Advanced-level sight singing, sight reading, rhythm, melodic and harmonic dictation, tonal and modal improvisation, keyboard skills. Letter grading.