Gné thábhachtach dár gcultúr Gaelach é an ceol traidisiúnta. Iarrtar ar scoláirí an Choláiste a gcuid scileanna ceoil a fheabhsú agus a chur chun cinn trí pháirt a ghlacadh i mbanna ceoil an Choláiste agus in imeachtaí ceoil eile. Cuireann daltaí Choláistí Eoin isteach ar chomórtas Siansa gach bliain, áit a léirítear sár-chaighdeán.
An important element of our Irish culture is our traditional music. Coláiste Eoin students are asked to perfect their musical skills and to promote the music by taking part in bands and other musical events. Students from Coláiste Eoin enter the Siansa competition each year, where they excel.