Okro Mch'Edelo SAB - Arr. Carl Linich And Clayton Parr
O sacrum convivium TTBB - Alwin Michael Schronen
Open Wide The Door Of Mercy SATB - Daniel Greig, Arr. Brad Nix
Oh, What A Beautiful City SATB - Arr. Stacey V. Gibbs
On Justice, Truth, And Peace SSA - Amy F. Bernon
On Jordan's Bank The Baptist Cry SATB - Arr. Hal H. Hopson
O Nata Lux - Ivo Antognini
O Quam Suavis Est SATB - Ivo Antognini
Oh Had I Jubal's Lyre SATB - Handel, Arr. Michael Mauldin
Oh Christmas Tree SATB - Arr. Francisco Nunez And Jim Papoulis
O Sing Rejoice! SATB - Handel, ed. Patrick M. Liebergen
O Music, Thou Most Lovely Art SATB - Johann Jeep, Ed. Ray Robinson
On A March Day SATB - Richard Burchard
Oft, In The Stilly Night TBB - Kevin T. Padworski
Omnis Terra (Jubilate Deo) Treble Voices - Dan Forrest
OMG! (#twitterlieder) - James Eakin III
O Setting Sun (A Whitman Triptych) - David Conte
O Salutaris Hostia SSAA - Frank Ferko
Oba Se Je - Christopher Aspaas
O, She Doth Tecah The Torches To Burn Bright SSAATTBB - Eriks Esenvalds
O Wusst' Ich Doch Den Weg Zuruck TBB - Johannes Brahms, Ed. James McCullough
O Lord, How Do My Woes Increase SATB - Orlando Gibbons, Ed. Crawford R. Thoburn
O Lord, Hear My Prayer - Jude B. Roldan
Now Thank We All Our God TTB - Arr. Noble Cain
