CROTCHET (from the Fr. troche, a hook; whence also the Anglicized "crochet," pronounced as in French, for the knitting work done with a hook instead of on pins), properly a small hook, and so used of the hook-like setae or bristles found in cer tain worms which burrow in sand. In music, a crotchet is a note of half the value of a minim, and double that of a quaver; it is marked by a round black head and a line without a tail or hook. By American musicians the term quarter-note is preferred to crotchet. The French troche is used of a "quaver" which has a tail, but in ancient music the semiminima, the modern crotchet, is marked by an open note with a hook.