Brian Boru

Breton Celtic folk music is the dance-centred traditional music of Brittany (Breizh) in north‑western France, rooted in the Breton language and the wider pan‑Celtic soundworld. It revolves around fest‑noz social dances, call‑and‑response singing (kan ha diskan), narrative laments (gwerz), and driving instrumental sets designed to keep long chains of dancers moving. Typical instruments include the bombarde and biniou kozh (Breton bagpipe), Celtic harp, diatonic accordion, fiddle, and later guitar and bouzouki; modern ensembles may also feature the Scottish Great Highland bagpipe (binioù bras) and snare drum under the influence of bagadoù (Breton pipe bands). Melodies are largely modal (Dorian, Mixolydian, Aeolian), drone‑based, and strongly rhythmic, serving specific dance types such as an dro, hanter‑dro, gavotte, plinn, laridé/ridée and others in metres from 2/4 and 4/4 to 6/8 and 12/8. While deeply traditional, the genre has continually refreshed itself through revivals and cross‑Celtic exchange, informing contemporary Celtic rock, Celtic electronica and global “world music” stages.