Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
Q:3/8=88
M:3/8
K:G
['', 'B d2 B cBA G F2 GAB']  
X:1
L:1/8
Q:3/8=88
M:3/8
K:G
 B |: d2 B | cBA | G F2 | GAB | (c3/4d/8c/8) B2- | B z B | d2 B | cBA | G F2 | GAB | 
 (c/d/4c/4 B/c/4B/4 A/B/4A/4) | G3- |1 G2 B :|2 G2 ||  