Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
['BG G2 GFGE DEGA B2 AG', 'BGdG eGdG BGdG edcB']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
 dc | BG G2 GFGE | DEGA B2 AG | cA A2 ABAG | ABcd edeg | BG G2 GFGE | DEGA B2 AG | ABcd edeg | 
 GGBA G2 :| G2 | BGdG eGdG | BGdG edcB | cAeA fAeA | cAeA e2 dc | BGdG eGdG | BGdG edcB | 
 ABcd edeg | GGBA G2 :|  