1 The sign which in early notation (13th–16th cent.) combines several notes into one symbol:
2 The slur which in modern notation of vocal mus. shows that the 2 or more notes it affects are to be fitted to the same syllable, or, in instr. mus., that the notes are to be phrased together.
3 The tie or bind—a use of the word better avoided as unnecessary and confusing.
4 The adjustable metal band which in instr. of the cl. family secures the reed to the mouthpiece. Some clarinettists use string ligature. See curved line, various uses of.