No particular tool has to be selected.
        
        
            - While 
 pressing CTRL 
 and the Space bar, drag the cursor across your score. As the cursor 
 strikes each note, you hear it played on your MIDI keyboard. You can drag 
 in any direction, and at any speed, and from one staff to another. You 
 might use this trick for checking chord voicings, scanning small sections 
 for wrong notes, or just for fun.