Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:4/4
K:Emin
['B2 AG', 'e2 f/e/d']  
X:1
L:1/8
M:4/4
K:Emin
 GA |:"Em" B2 AG B2 AG |"D" FAEA D2 EF |"Em" G2 dedBAG |"D" A2 dedefg |"Em" B2 AG B2 AG | 
"D" dAeA f2 af |"Em" e2 f/e/ d"D" e2 f/e/ d |"Em" B6 Bd ::"Em" e2 f/e/d e2 f/e/d |"G" BdAd G2 Bd | 
"C" e2 f/e/d e2 f/e/d |"G" B4"D" A2 Bd |"Em" e2 f/e/d e2 f/e/d |"C" eBfB g2 af | 
"Em" e2 f/e/ d"D" e2 f/e/ d |1"Em" B6 Bd :|2"Em" e8 ||  