Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/8
M:4/4
K:G
['G2 ge', 'fe d2']  
X:1
L:1/8
M:4/4
K:G
|: G2 ge d2 ed | G2 ge dBed | c2 Ac BBGB | ABcd AAAB | GBge dBed | GBge dBed | cdef gedc | 
 B2 A2 G4 :: d2 fe d2 dd | e2 f2 g4 | fe d2 ed c2 | dc B2 A4 | c2 cc B2 BB | cB cd A4 | GABc dcBA | 
 Gg gf g4 :|  