Koanga, RT I/4, Act 1: "Oh gentle mistress, how gladly I served you" (Palmyra, Clotilda, Don José, Koanga, Simon Perez, The Slaves) by Eugene Holmes , Raimund Herincx , Jean Allister , Claudia Lindsey , Keith Erwen , John Alldis , The John Alldis Choir , London Symphony Orchestra , Sir Charles Groves