KBA Complete - Version 2.4 Kba Complete is a 4 program ear-training and music theory suite: Chord ID, Pitch ID, Rhythm ID, and Spell ID. Graduated exercises (easy to advanced) for aural identification of chords, pitches, intervals, rhythm patterns with music theory exercises. This software trains and develops the 'good ear' and theoretical knowledge required for music improvisation, composition, and performance. Demo does not include Rhythm ID.