The North Wales Association Of The Male Voice Choirs, Cor Meibion y Bala a'r Cylch, Cor Meibion Bro Dysynni, Cor Meibion Llanfair Caerinion, Cor Meibion Madog, Cor Meibion Maelgwn, Cor Meibion Penybontfawr, Cor Meibion Powys, Brymbo Male Choir, Newtown & District Male Voice Choir, Rhos Male Voice Ch