Piano Tutor Book 5 Track 1 Deep Underground by Andrea Monk|Published 27 December 2018 https://usercontent.one/wp/andreamonk.co.uk/wp-content/uploads/2018/12/Piano-Tutor-Book-5-Track-1-Deep-Underground.mp3?media=1694117915 “Piano Tutor Book 5 Track 1 Deep Underground. The left hand plays a continuous Alberti bass.”