Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/16
M:4/4
K:C
['D4 D4']  
X:1
L:1/16
M:4/4
K:C
 (D2E2) | F3 F D4 D4 (C3 D) | F F3 D4 D4 C3 D | F4 F4 F2G2 A4 | C12 (F3 E) | (D6 C2) D4 E2F2 | 
 F4 D4 D4 d3 d | c2c2 (A4 G2)(A2c2) E2 | D12 ||  