Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:3/4
K:C
['df a2 B2']  
X:1
L:1/8
M:3/4
K:C
 df a2 B2 | cc e2 g2 | df a2 B2 | ce e2 d2 | GG B2 Bd | cc e2 g2 | df a2 B2 | ce e2 d2 |]  