40 Count 4 Wall Improver Music: Let's Hang On - Frankie Valli & The Four Seasons
40 Count 4 Wall Improver / Easy Intermediate Music: Let's Hang On - Frankie Valli & The Four Seasons : (Various compilations)
24 Count 4 Wall Easy Beginner Music: Mame - Herb Alpert & The Tijuana Brass
40 Count 4 Wall Absolute Beginner Music: Let's Hang On - Frankie Valli & The Four Seasons : (iTunes)
40 Count 2 Wall Beginner Music: Let's Hang On - Frankie Valli & The Four Seasons