Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:2/4
K:G
['FE D2']  
X:1
L:1/8
M:2/4
K:G
 GGGA | FE D2 | E2 F2 | G2 z d | cBAA/B/ | cBAA/B/ | cBAG | FE D2 | G2 A2 | d>edc | BBdA | G2 z2 |]  