Possible Clues:

• Musical direction after ritardando, perhaps
• One time in Italy revert to previous speed
• ''Return to your old beat''
• Returning to the previous speed, in music
• At the original speed, to Liszt
• Returning to an old beat
• Undoer of 'ritardando'
• Staff direction from two levels inhibiting secretary
• At normal speed, musically
• Regular time, in a music score