free online resources and tools to help you learn and compose music, scales and chords, for guitar and other instruments.

show scale will help you find the music key or music scale you are looking for. select one of the notes on the piano to start or view a full scale!

find the key of any song, know 'what key is this song in' with our unique song key database.

quickly find the key and bpm to any of your songs online! search our massive song key database for compatible tracks to produce the perfect mashup.

music theory for beginners

a resource for learning guitar theory and applying it to the guitar fretboard..

find key and bpm information for any song. explore an extensive database of 40+ million tracks with data on release date, label, energy, happiness, and danceability. discover dj recommendations for harmonic mixing.

online guitar lessons from pro instructors. learn guitar online with jamplay + truefire and join this community of 3m+ guitarists and aspiring musicians.

learn piano online with key-notes, a leading method specializing in teaching adult beginning to intermediate-level piano students.