-French Horn Racer listens to you play your instrument as you quickly switch between notes to keep your car fueled as you pass other cars.
You can view an example video at the Developer Website link below, or at https://youtu.be/VU0jZf1w5no

The Perfect app for beginners and advanced players of all ages:
-Works with your REAL instrument.
-Uses the iPhone/iPad microphone to listen and analyze each note you play.
-The scoreboard shows you best time, and how many cars you have passed.
-Unlock new cars based by your performance.
-The Game Center Leaderboards let you show off your best performances in comparison of other players.