easy to advanced ear training and music theory exercises.uunlimited, graduated (easy to advanced), chord, pitch, interval, rhythmic dictation and music theory exercises with instant feedback, immediate scoring, and self testing. these programs develop the 'ear' and theoretical knowledge needed for improvisation, composition, and performance. there is one sure way to accurate music dictation - immediate scale step recognition. pitch id develops your ear to recognize any scale step or interval in the immediate key. chord id develops your ear to recognize chord progressions in pop latin, country, rock, and jazz styles. rhythm id develops and improves recognition of rhythm patterns in simple and compound meter. spell id provides music theory exercises in scale, interval, chord, cadence, and secondary dominant spelling .