Oidche Mhath Leibh Irish Traditional, Hans-Andre Stamm Soprano, Harp, Flute Celtic, St. Patrick's Day, Folk
Old Irish Blessing Denes Agay Piano, Soprano St. Patrick's Day, Gospel, Early Music, Stage & Screen, Folk
O My Love Is Like A Red, Red Rose Simon Carrington, Traditional Scottish, Mark Phillips, Robert Burns Guitar, Piano, Bass, Tenor, Viola, Soprano Celtic, St. Patrick's Day, Folk
Omnia vincit amor Alessandro Orologio Bagpipe, Flute, Accordion, Oboe, Violin, Recorder St. Patrick's Day, Children, Celtic, Folk
Oft in the stilly night Arthur Somervell, Thomas Moore, Dominic Meccia, Benjamin Britten, Traditional Irish, Dudley E. Bayford Guitar, Piano, Organ, Electronic keyboard, Oboe, Bassoon Folk, Folk World & Country, Classical, Celtic, St. Patrick's Day
Celtic Prelude on Once In Royal David's City Andrew Emmet, Cecil Francis Alexander, Abdul Adhl Azeez, James Mayhew, Danny Crocome, Alan Beyel Horn, Piano, Handbell, Trombone, Tuba, Violin Children, Pop, Gospel, Big Band, Celtic
Old Maid In A Carret Traditional Irish Folk Song, Irish Folk Song Piano, Guitar, Organ, Electronic keyboard Folk, Folk World & Country, St. Patrick's Day
Old Irish Blessing arranged for Voice and Piano accompaniment Piano Stage & Screen, Celtic, Contemporary Christian, Gospel, St. Patrick's Day
On that Day When I Cross the Mighty Sea James Michael Stevens Violin, Piano St. Patrick's Day, Gospel, Celtic
Only Time Roma Ryan, Fernando Britto, Nicky Ryan, David Robb, Enya, Phillip Keveren Recorder, Clarinet, Violin, Viola, Horn, Flute Pop Rock, Adult Alternative, Rock, New Age, Ballad
Only If Juliano Music, Nicky Ryan Piano, Guitar Celtic, Ethnic Fusion, Adult Alternative, New Age, St. Patrick's Day
Only When I Sleep Oliver Leiber, Ana Vieira, John Shanks, Andrea Corr, Sharon Corr, Jim Corr Cello, Viola, Guitar, Violin, Piano, Drum Set Pop Rock, Pop, Rock, Adult Alternative, Classical
On Raglan Road Mark Knopfler, Caroline Pearsall, Patrick Kavanagh, Clive Lane Cello St. Patrick's Day, Rock, Folk, Celtic
On the Isle of Innisfree James McDunn Mezzo-Soprano, Soprano St. Patrick's Day, Folk, Celtic, Children
On The Banks Of Allan Water Carsten Gerlitz, Matthew Gregory Lewis, Traditional Scottish Folk Song, Phillip Keveren, Scottish Traditional Piano St. Patrick's Day, Folk, Celtic
