Metronome with tap-for-tempo and multiple time signatures.Play-synced song scroll so you can play at your own pace.Pro-quality song chords & lyrics for guitar.Tons of tunings: standard, drop D, drop A, half step down and loads more.GuitarTuna has been downloaded over 100 million times, making it the most downloaded tuning app in the world. This is not just a guitar tuner: we’ve got +100 tunings for 15 instruments plus chords and lyrics for your favorite songs! It’s fast, accurate, and easy to use.