1. "O beltà rara, o santi modi adorni" by Andrea Gabrieli, performed by Paul McCreesh; Gabrieli Consort & Players on Politics, Dialogues and Pastorales.
2. "O Come, All Ye Faithful" performed by the Indianapolis Christ Church Cathedral Choir of Men and Boys on Sing, Choirs Of Angels.
3. "O Death" performed by Ralph Stanley on the O Brother, Where Art Thou? soundtrack.
4. "O death where is thy sting" from The Messiah by Handel, performed by Florence Quivar, John Aler; Andrew Davis, Toronto Symphony.
5. "O del mio amato ben" by Stefano Donaudy, performed by Arleen Augér on Arleen Auger, American Soprano.
6. "O dolci mani..." from Tosca by Puccini, performed by Price - Di Stefano - Taddei - Corena - Wiener Philharmoniker - Herbert von Karajan.
7. "O galantuomo, come andò la caccia?" from Tosca.
8. "O glücklich Paar, und glücklich immerfort" from The Creation by Haydn, performed by John Eliot Gardiner; English Baroque Soloists, Monteverdi Choir.
9. "O Grande Amor" by Antonio Carlos Jobim and Vinicius DeMoraes, performed by Stan Getz on Sweet Rain.
10. "O magnum mysterium" by Morten Lauridsen, performed by the Robert Shaw Festival & Chamber Singers.
11. "O passi sparsi, o pensier vaghi e pronti" by Andrea Gabrieli performed by Paul McCreesh; Gabrieli Consort & Players.
12. "O Quam Tu Pulchra Es" by Alessandro Grandi, performed by The English Cornett and Sackbut Ensemble on Accendo - Music from the Time of Claudio Monteverdi.
13. "O Sole mio" by Eduardo di Capua, performed by Bertin-Scholl-Visse on The Three Counter-tenors.
14. "O tu ch'innanzi mort' a questre rive" from Orfeo by Claudio Monteverdi, I can't remember the performers other than the Edward Tarr Brass Ensemble on period instruments.