Pibroch, Piobaireachd or Ceòl Mór is an art music genre associated primarily with the Scottish Highlands that is characterised by extended compositions with a melodic theme and elaborate formal variations. It is currently performed principally on the Great Highland Bagpipe and is also increasingly played on the Scottish fiddle and the wire-strung Gaelic harp or clarsach, among other instruments, as part of a recent revival.