pibroch
A series of musical variations for the bagpipes, usually martial or funerary in nature.
Ever, as on they bore, more loud / And louder rung the pibroch proud.
Where it comes from
From Scottish Gaelic pìobaireachd (“act of playing the bagpipes”), from pìobaire (“piper”) + -achd (“abstract noun suffix”).
Adapted from the Wiktionary entry pibroch (CC BY-SA 4.0).