此系列提供了混合的風格與精心挑選的作品從pretime®到bigtime®是一套完整的鋼琴補充教材。每本書提供了一系列，完美安排每個學生的級別：流行，古典，爵士和藍調，搖滾樂，等等。
第四級曲目包含：
Amazing Grace • Crazy Little Thing Called Love • Do‐Re‐Mi • The Entertainer • Havah Nageela • Long, Long Ago • New River Train • Pizzicato Polka • Polovetzian Dance No. 17 • Tuxedo Junction • Watermelon Man • What Makes You Beautiful • Yesterday
第四級曲目包含：
Amazing Grace • Crazy Little Thing Called Love • Do‐Re‐Mi • The Entertainer • Havah Nageela • Long, Long Ago • New River Train • Pizzicato Polka • Polovetzian Dance No. 17 • Tuxedo Junction • Watermelon Man • What Makes You Beautiful • Yesterday