Chord ID trains chord identification by ear. Chord ID has three answer modes: Functions (Roman numerals), Chords (C Maj, Dmin, etc.), Qualities (Maj, min, dim). The graduated exercises begin with the easy task of identifying only the I or V chords. Begin practice by selecting an easy level (select under Levels menu) and gradually advance. Repeat as many times as necessary, click in the appropriate box and change any chord, then check your answer. Chord ID has 18 levels of graduated difficulty: 60 exercises with 20 questions in each exercise for a total 1200 questions, each with 8 chords. Questions are in Latin, country, rock, and jazz styles with immediate feedback and scoring.