Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:7/8
K:E
['G2 A Bc B2 G2']  
X:1
L:1/8
M:7/8
K:E
 E2 |"E" G2 A Bc B2 |"B7" ABA"E" G2 GF |"E" G2 A Bc B2 |"B7" ABA"E" G2 :: z2 |"A" ccc c2"E" B2 | 
"A" cBA"E" GA Bc |"A" cBA"E" GF EG |"B" F3 F2 :|  