The Toolbar is located at the top of the Score Editor window and provides tools to zoom score, control playback and switch between different input types.

Toolbar on Mac
Toolbar on Mac
Toolbar - Zoom
The Zoom pop-up menu allows you to choose the magnification percentage for your score
Toolbar - Edit
The Edit button lets you start modifying files opened for preview and select a file format for editing
Toolbar - Playback
Playback controls: Jump to start, Play/Pause, and Jump to end
Toolbar - Options
Playback Options buttons: Loop, Counting, and Metronome
Toolbar - Volume
Volume slider
Toolbar - Input
Input type buttons: Standard, Staff Positions, Tablature, and Lyrics