Amma-no-fuye

Amma-no-fuye (Jap.: double flute), *double flute of Japan, made of 2 bamboo tubes glued together lengthwise; used by blind masseurs to announce their presence; 14–20 cm. (5½–8 in.) long (176). Sachs, Curt. Reallexikon der Musikinstrumente. Berlin, 1913.