Creating a test loop before the test goes on

[MaximeHollebecq]

Actually , when the person start the program (press the button once) , the program start and the trial Number start to increment.

The idea is to create an infinite loop with the beat (synch test) when the user start and then , if the button is pressed again , the trial number start to increment

[hendrikknoche]

this way people could observe the beat/rhythm and only with their first button press (after the press to start the test) will they start keeping the beat.