HookTheory is a music software company built for songwriters and composers. Their core interface is a colorful MIDI piano roll that supports melodies and chord charts. They have two major products available, including a free song directory called TheoryTab and a music creation tool called HookPad. TheoryTab hosts over 50,000 user generated transcriptions of popular songs across every genre. Site visitors can search for an artist, pick a song, and explore the underlying chords + melodies to see
