Qwik Tune Guitar Professor Not just a Tuner... a tuner and a teacher! The Guitar Professor® is a highly accurate, easy to use guitar tuner plus pitch pipe... plus a chord finder that teaches the new player to play over 250 different chords! • Tuner • Fast & Precise Tuning • Clear LCD Screen • 3 LED Tuning Reference • 250 Chords • Major, Minor, 7th & 9ths • Pitch Pipe • Batteries Included.