Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
M:2/2
K:D
['ADDE FEFG', 'Addc AGFG'  
X:1
L:1/8
M:2/2
K:D
 (dB) | ADDE FEFG | A>D (3(DDD) cABG | ADDE FEFG | AdcA GcBc | ADDE FEFG | A>D (3(DDD) cABG | 
 ADDE FEFG | AdcA G2 || (FG) | Addc AGFG | Adde fdec | Addc AGFG | AB=cA G2 FG | Addc AGFG | 
 Adde f2 (3(efg) | afge fdec | d=cAF G2 ||  