Realejo (m)
(with) definite article: oAccording to Sachs, who fails to reveal his source, a bagpipe; Possibly a misinterpretation; According to the internet source, it is also "a kind of portable mechanical organ that has one or several bellows, with a keyboard".
Sachs, Curt: Real-Lexikon der Musikinstrumente: zugleich ein Polyglossar für das gesamte Instrumentengebiet [Berlin, 1913]. Hildesheim, 1964 [facsimile].