turn

An embellishment consisting of ‘a principal tone (struck twice) and one higher and one lower auxiliary a diatonic second removed, unle a chromatic sign accompanies the symbol; if a sharp or flat is placed above the turn-mark, it alters the higher auxiliary; if below, the lower. The common, direct, or regular turn usually begins on the upper auxiliary; the back or inverted t. begins with the lower; the rebounding or trilled t. begins with a pa ing shake; the double t. affects two notes at once. Vide GRACES.