Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/16
Q:1/4=300
M:2/4
K:D
['(3ABc d2dd d2cB ABGA F2A2 E2A2 D2A2', 'edcB caaa']  
X:1
L:1/16
Q:1/4=300
M:2/4
K:D
 (3ABc | d2dd d2cB | ABGA F2A2 | E2A2 D2A2 | Bcde dcBA | d2a2 fgaf | efge fgaf | gabg fdfa | 
 gfed dcBA | BdBd gBgB | AdAd fAfA | GBGB efed | c2Bc A2>G2 | FGAF EFGE | FGAF GABG | A2d2 fedc | 
 d6 :| z2 | d2b2 agfe | d2a2 c2a2 | B2gB ABcd | ecBA d2df | edcB caaa | Bggg Afff | edcB caaa | 
 bgbg afaf | edcB cABG | AFGE DAFA | DAFA GEBE | GEBE FAdc | BAGF EFGA | Bcde A2d2 | fedc d6 ||  