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are exercises to teach you how to read rhythms. There are only two chords in each exercise--C and Bb power chords (root and fifth only). This is so you can concentrate on the rhythmic part of the music and not the melodic/harmonic part. The excercises are each 32 bars long and start out very simply with whole and half notes. They progress rapidly into more complicate rhythmic excercises with a lot of syncopation. At the bottom of this page is a .gif of Power Chord Rhythms # 4.