Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
M:4/4
K:G
['B2 BA BABe ABBG A2 AB dBBA', 'e2 de'  
X:1
L:1/8
M:4/4
K:G
 B2 BA BABe | ABBG A2 AB | dBBA G2 g2 | geeg edBA :| B3 d e2 de | g2 eg edBA | BABd e2 de | 
 gedg BA A2 | BABd e2 de | g2 eg edBg | agea gedg | edBg edBA |]  