(Piano). This course on improvisation for all instruments and all styles will help players develop monster musical skills! Book One presents Lessons 1 through 26 of this unique instructional course that imparts a solid basis in technique, rhythm, chord theory, ear training and improv concepts. Covers: common chord voicings, basic chord progressions, the swing feel, and much more. The audio can be used as a listening and play-along tool. The audio is accessed online using the unique code inside each book and can be streamed or downloaded. The audio files include PLAYBACK+, a multi-functional audio player that allows you to slow down audio without changing pitch, set loop points, change keys, and pan left or right.