Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:4/4
K:G
['E2- EFGB A<eAB cBAB A<eAB cBAc BAGB', 'edBc BAGB AFDF GFGB |1 BAGB A2']  
X:1
L:1/8
M:4/4
K:G
 E2- | EFGB | A<eAB | cBAB A<eAB | cBAc BAGB |1 AGFG E2 :|2 AFDF G2 |: (3(def) | [gB]2 fg edBc | 
 BAGB AFDF | GFGB A"^a."GAc |1 BAGB A2 :|2 BcAF [GG,]2 |]"^Var:""^a." F |]  