Create a musical composition incorporating the given motif following the designated alphabetical pattern.
X:1
L:1/4
M:2/2
K:G
['E2 B2 A c B2 A3/2 B/', 'F G A']  
X:1
L:1/4
M:2/2
K:G
|: E2 B2 | A c B2 | A3/2 B/ A F |1 G A B2 :|2 G F E2 |: E2 G2 | G E F2 |1 F G A F | G A B2 :|  