The select piano solos in Progressive Repertoire are perfect for study, festival and performance. The repertoire featured in the series was derived from the Australian Music Examination Board (AMEB) syllabus. Book 1 is at the early intermediate level. Books 2 and 3 are at the intermediate level. Book 4 moves from the intermediate to late intermediate level. Book 5 is at the late intermediate level. Book 6 progresses to the early advanced level. Marvin Blickenstaff has expertly edited each book and has performed on each CD.