Orchestras & Choirs
John regularly gives workshops and masterclasses to choirs, orchestras and schools.
Cork Opera House Concert Orchestra
June 2016 - present
Cork Opera House Concert Orchestra is an exciting new professional orchestra for Cork, and in residence at the Opera House. Founded in 2016 for the acclaimed concert opera series, the orchestra has to date played 12 concert performances of classic operas with the greatest Irish and International opera stars, and many more are planned. Events like the Right Here Right Now and Christmas Concerts have allowed the orchestra to work with many great artists from other genres, often with custom-made orchestrations, resulting in unique collaborations. Led by the renowned violinist Alan Smale (former leader of both RTÉ Concert and National Symphony Orchestra) the orchestra's membership is comprised of some of Ireland's most gifted professional musicians, most living in, from or connected to Cork.
RTÉ Concert Orchestra
June 2015 - present
RTÉ National Symphony Orchestra
Debut June 2016
The Voice Effect
Conductor & Co-Director
2011 – 2017
The BIG SING! at Cork International Choral Festival
Rehearsing and conducting massed choirs and members of the public (800+) to make a unique performance.
2011 - 2016
Wexford Gateway Orchestra
WGO premiered Symphony No.1 "The Gateway" by John O'Brien at the Wexford Opera House in May 2011.
2008 – 2013
Opera Works (Youth Opera Company)
Conductor of stage productions, Cork Children’s Chorus, Seraphim (female voice chamber choir), orchestras and ensembles.
2003 – 2008
Concert Series at the Honan Chapel, University College Cork
2001 – 2008
Cork School of Music
Symphony, Sinfonietta & Intermediate Orchestras, Wind Ensemble, Youth & Fleischmann (Symphony) Choirs.
2001 – present
National Chamber Choir of Ireland
University College Cork Choral Society
1998 – 2005
Togher Youthlink & Togher Children’s Choir
1996 – 2001