On The Road To Mandalay Alan Duguid, John Hoesly, O. Speaks, Oley Speaks, Rudyard Kipling Klavier, Bass, Baritonhorn, Euphonium, Bariton, Bassposaune Romantisch, Oper, Balladen, Evangelium, Jazz
On The Day When I Was Wedded gilbert, Sir Arthur Sullivan, Richard Walters, William S. Gilbert Klavier Operette, Bühne & Leinwand, Klassisch, Oper
O patria o cara patria... O tu Palermo Giuseppe Verdi, Francesca Licciarda, Giuseppe Fortunino Francesco Verdi Bass, Klavier Romantisch, Klassisch, Oper
Open Your Heart Andreas Carlsson, Georges Bizet, Daniel Brewbaker, Gardner Cole, Jill Johnson, Dean Pitchford Klavier, Gitarre, E-Gitarre, Cello, Violine, Bratsche Ballade, Club/Tanz, Dance-Pop, Romantisch, Latein
Operator Grateful Dead, Diana Krall, William Spivery, Ron McKernan, Jim Croce, The Manhattan Transfer Gitarre, Klavier, Ukulele, Elektronische Tastatur, Orgel, E-Gitarre Rock, Erwachsene Contemporary-Musik, Reggae, Folk Rock, Punk
Operation Dinner Out Silvestro Sabatelli Fagott, Bratsche, Horn, Flöte, Cello, Trompete Bühne & Leinwand, Oper
Operation Ouch Dobs Vye, Jose Ignacio Huante Ceron, Jess Charles Klavier Kinder, Oper, Rock, Pop, Bühne & Leinwand
Operation Harmony Randy Newman Klavier, Gitarre Soundtrack, Easy Listening, Bühne & Leinwand, Pop Rock, Oper
