Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:2/2
K:D
['FAdc d2', '(ef) gfge c2 (ec) dcdB A2']  
X:1
L:1/8
M:2/2
K:D
 (AG) | FAdc d2 (AG) | FAdc d2 (A^G) | Aced cBA^G | Aced cBA=G | FAdc d2 (AG) | FAdc d2 A2 | 
 BcdB cdec | f2 d2 d2 :: (ef) | gfge c2 (ec) | dcdB A2 (GF) | GABG FGAF | E^DEF E2 (ef) | 
 gfge c2 (ec) | dcdB A2 (^GA) | BcdB cdec | f2 d2 d2 :|  