Resize notes and symbols in the Score Editor
You can change the size of notes, as well as most score symbols, using the Resize tool (located in the Score Editor Tool menu).
Resize a note or score symbol
Grab the item with the Resize tool, and move the pointer up or down.
Reset a note or symbol to its original size
Double-click the item with the Resize tool, then click OK in the dialog.
Note: Resizing notes does not affect MIDI playback, only the notes’ visual appearance.