A curved line joining notes of different pitch, played smoothly.
Also known as: Phrase mark, Curved line over notes, Arc over music
A curve over notes of different pitch means play them smoothly as one gesture. The identical curve joining two notes of the same pitch is a tie, which means something completely different.
Instructs the notes it spans to be played smoothly and connectedly, as a single gesture.
Contexts: Music
Means a single bow stroke on a string instrument and a single breath on a wind instrument, so the same mark instructs different physical actions.
Contexts: Music
Is drawn identically to a tie and distinguished only by whether the notes it joins are the same pitch.
Contexts: Music
A thin arc rising from the first notehead and falling to the last, thickest at its middle and tapering at both ends.
The same curve; only whether the joined notes share a pitch distinguishes them.