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In guitar playing legato usually refers to slurred notes, exclusively to hammer-ons and pull-offs. Use of legato technique with electric guitar will generally require playing notes that are close and on the same string, following the first note with others that are played by the techniques just mentioned. Many electric-guitar virtuosos, usually shredders, are well-versed in this technique, as it allows for rapid and also “clean” runs.

In musical notation, legato is to articulate in a joined or tied together manner - i.e., notes are articulated smoothly and connected, so that there's no intervening silence in the transition from note to note.

Other kinds of articulation: Staccato, accent (as in syncopation).

In standard notation legato is indicated either with the word legato itself, or by a curved line over or under the notes that are to be joined in one legato group.