Síle's musical education started at 19 in the College of Music Dublin where she swept the board on scholarships and prizes. Further studies brought her to The Welsh College of Music & Drama and to The Royal Northern College of Music where she graduated with the highest grade of her year.

Her professional career, while eclectic, has its roots firmly in classical music. Síle has performed in orchestras as far flung as the Orquesta Sinfonica de Galicia, de Gran canaria and Castilla y Leon in Spain, Stavanger Symphony Orchestra in Norway and Opera Orchestras in Italy. She has also toured with the historically renowned Hallé Orchestra and played with the Welsh National Opera. At home she performs regularly with the National Symphony Orchestra of Ireland, the RTÉ Concert Orchestra and Opera Theatre Company.

Síle's passion in music is for the innovative the exciting, music that stirs the senses, she is a founder member of the improvisation trio 'Prey' and a member of the contemporary music ensemble VOX21. She worked with the Royal Shakespeare Theatre Company in London playing Shawms (European & eastern), Bombarde, Rauchfife, Crumbhorns, Oboes, Keyboards & Percussion. She also sang in the RTÉ chamber choir.

Síle has given solo & chamber music recitals in Spain, Italy, Britain and most recently in venues around Ireland with a number of diverse ensembles.