First broadcast: on BBC Radio UlsterLatest broadcast: on BBC Radio Foyle
In the first of six heats, John Toal introduces 11 choirs as they perform at Methodist College Belfast, competing to win a place in the live final on 26 April.
First broadcast: on BBC Radio UlsterLatest broadcast: on BBC Radio Foyle
In the second of six heats, Kerry McLean introduces ten choirs as they perform at Holy Cross College in Strabane, competing to win a place in the live final.
First broadcast: on BBC Radio UlsterLatest broadcast: on BBC Radio Foyle
In the third of six heats, John Toal introduces 11 choirs as they perform at Lisneal College in County Londonderry, competing to win a place in the live final.