A connection point is the location where MusiCAD knows that an object connects to. At a connection
point you may alter the properties of the corresponding object.
Connection-points are used for text, symbols and
lines and are visible as small blue triangles during edit..
Note that notes, automatic bar lines and embellishments like tr do not have
any connection point.
Clef, key and meter, rehearsal signs
explicit (hard) bar lines and text all have one connection point, whereas crescendo and legato bows have