Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
M:4/4
K:G
['GEDE G2 BG', 'bg g2']  
X:1
L:1/8
M:4/4
K:G
 ge | dBAB GEDE | G2 BG DGBG | A3 B AGED | (3EFG AB c2 Bc | d B3 GEDE | G2 BG dGBG | B3 A BedB | 
 AcBA G2 :| ga | bg g2 bg g2 | af f2 af f2 | bg g2 bgag | eaag a2 ga | bg g2 agef | g3 e dBGA | 
 B3 A Bed B | AcBA G2 :|  