Ùrlar (m)
Basic adagio air of a Pìobaireachd, followed by a series of variations; According to Flood "the groundwork of the pibroch".
Collinson, Francis: The bagpipe: the history of a musical instrument. London, 1975, p.148.
Flood, Wm. H. [William Henry] Grattan: The story of the bagpipe. London, 1911, p.208.