Symbols appended to musical notation which indicate to the performer the manner in which particular notes and phrases should be played.
Until the late 18th century the only signs commonly used to indicate distinctions of articulation were the slur and the staccato mark (a dot, a vertical stroke, or a wedge) placed above or below the note head. In the 19th century composers became concerned to specify their requirements with ever greater precision, and other forms of articulation mark were introduced, though only a few of these were widely adopted. The principal meaning of the slur has remained relatively constant, though the manner of its employment has varied greatly over the centuries. Except where slurs are written over a succession of notes on the same pitch to indicate portato, they specify that notes of different pitches should be performed without separation, that is, legato. There is, strictly speaking, no greater or lesser degree of connectedness; terms such as ...