"Performance" Menu

Play

Plays the whole score or the currently selected part.

To select a measure: click on the measure.
To extend the selection: shift+click on the measure ending the selection
To delete the selection: click in the selection
To select a part until the end: delete the selection then shift+click on the part and the measure chosen
To select all the parts until the end: delete the selection then shift + double click on the chosen measure

Pause

Stops music performance, that can be restarted at this point later.

Stop

Stops music performance. A new start will play the score from the beginning again.

Volume

Enables to set up the sound overall volume

Tempo

Enables to set up the tempo (performance speed) of the music

Force played measures

You will define the measures to play. This can be single measures like "8,10,11,13,14,6" or group of measures like "2-12" where measure 2 to 12 will be played.
Measure or group of measure currently edited is show on the document.

Loop

While playing allow to repeat the document or the selected area.

Virtual Singer

Enables to decide whether you want the lyrics sung by Virtual Singer or played by an instrument.

Number of measures before music start

These measures before the music start with the metronome. Metronome state is ignored.