Track 1: Alto Muted - Robert Lehman

Track 2: Alto Predominant - Robert Lehman

Track 3: Balanced Voices - Robert Lehman

Track 4: Bass 1 Muted - Robert Lehman

Track 5: Bass 1 Predominant - Robert Lehman

Track 6: Bass 2 Muted - Robert Lehman

Track 7: Bass 2 Predominant - Robert Lehman

Track 8: Soprano Muted - Robert Lehman

Track 9: Soprano Predominant - Robert Lehman

Track 10: Tenor Muted - Robert Lehman

Track 11: Tenor Predominant - Robert Lehman