Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:2/2
K:D
['d2 dd']  
X:1
L:1/8
M:2/2
K:D
 d2 | dA AG F2 ED | DE FG A4 | d2 dd d2 dd | ef ge f2 ed | e3 d c2 (Bc) | d2 cB AA GF | 
 (GA) B2 c3 d | d6 |]  