bagpipes

The first step in mechanizing the wind supply of a single or double pipe was attained with the creation of the mouthblown bagpipe or bladder pipe, followed by complete mechanization with suppression of the mouthpipe in favor of bellows. Characterized by their combination of reedpipe and air reservoir in form of a bag, bagpipes were at first invariably mouth blown, later also bellows blown. In either type, air reaches the reed in a steady stream causing the bagpipe to sound uninterruptedly...