Track 1: The Pirates of Penzance Vocal Score (No. 9 What ought we to do) – Accompaniment Track-1

Track 2: The Pirates of Penzance Vocal Score (No. 9 What ought we to do) – Alto Muted-1

Track 3: The Pirates of Penzance Vocal Score (No. 9 What ought we to do) – Alto Predominant-1

Track 4: The Pirates of Penzance Vocal Score (No. 9 What ought we to do) – Balanced Voices-1

Track 5: The Pirates of Penzance Vocal Score (No. 9 What ought we to do) – Edith Muted-1

Track 6: The Pirates of Penzance Vocal Score (No. 9 What ought we to do) – Edith Predominant-1

Track 7: The Pirates of Penzance Vocal Score (No. 9 What ought we to do) – Kate Muted-1

Track 8: The Pirates of Penzance Vocal Score (No. 9 What ought we to do) – Kate Predominant-1

Track 9: The Pirates of Penzance Vocal Score (No. 9 What ought we to do) – Soprano Muted-1

Track 10: The Pirates of Penzance Vocal Score (No. 9 What ought we to do) – Soprano Predominant-1