For MuseScore 3 users, see Ties
A tie is a curved line between two notes of the same pitch. If you want a curved line that spans multiple pitches see Slur .
Select first note:
+ creates a tie: (In version 0.9.3 or earlier the shortcut is Shift+S)
To create ties during note entry press + after the first note of the tie. In version 0.9.3 or earlier you must press + before adding the first note.