(Piano Instruction). This workbook for the left hand on the piano is ideal for: piano students who have difficulty reading bass staff notes; piano players who want to strengthen their sightreading skills; musicians and music students who read only treble clef, but need or want to expand their bass staff note reading; budding composers who want to write for instruments that read bass clef; singers that want to improve accompaniment for themselves; or high school/college level music students who read treble clef and need to learn basic keyboard skills for the bass clef.