Foot

Foot (Fr.: pied; Ger.: Fuss; It.: piede; Sp.: pie), 1. the lowest joint of certain woodwind instrs.; 2. the lowest part of an organ pipe; 3. a unit of length and hence of pitch, as the pitch of a pipe depends upon its length. In organ building this is expressed in terms of, and in relationship to, an organ pipe 8' long from the foot up (i.e., not counting the foot), sounded by a C key. A stopped pipe sounds an oct. lower than does an open one, and its pitch is usually indicated in terms of…