Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:4/4
K:D
['edBA GBBB', 'edBA GBBB']  
X:1
L:1/8
M:4/4
K:D
|: AddA efff | edBA GBBB | AddA efaf | afaf e2 dB | AddA dAef | edBA GBBB | AdBA dAfa | 
 ageA d3 B :: efff afaf | edBA GBBB | AddA aaAa | aAaf e2 dB | efff fggg edBA GBBB | AdBA dAfa | 
 ageA d4 :|  