Gaiteiro (m)
(with) definite article: oany person who plays some kind of bagpipe (&c.)
The term distinguishes the bagpipe player from a gaitista, i.e. player of the armónica (which is also known as gaita de boca [mouth organ]),
Veiga de Oliveira, Ernesto: Instrumentos musicais populares portugueses [1966]. Lisboa, 1982 (2), p.342.