Welte-Mignon Reproducing Piano

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Welte-Mignon Reproducing Piano. Type of pianola using photo-electric cell, developed by Edwin Welte, 1904. His uncle, Emil Welte (1841–1923), est. branch of Freiburg family business of making pneumatic mus. instrs. in NY in 1865 and developed paper roll used with pneumatic action. On these rolls are preserved historic perfs. of pf.-playing by Mahler and others.