Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:6/8
K:G
['gfe dBG', '(G/A/Bc) dBd (e/f/g)e dBA']  
X:1
L:1/8
M:6/8
K:G
 f | gfe dBG | gfe dcG | BBB cBA | GBB{c} BAG | gfe dBG gfe dBG | EAA{B} AGA | EAA A2 z :: B | 
 (G/A/Bc) dBd | (e/f/g)e dBA | GBB cBA | GBB B2 A | (G/A/Bc) dBd | (e/f/g)e dBA | EAA{B} AGA | 
 FAA A2 z :|  