(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.