Chord Jams: Strum Bowing Etudes Book 2 is a set of 20 solo etudes for string instruments that reinforces and utilizes the techniques from The Strum Bowing Method: How to Groove on Strings and The Rhythm String Player: Strum Bowing in Action. It is available for 4-6 string violin and cello. Difficulty Grade Level 1-3. 147 pages.