Develop a musical composition by integrating the alphabetically represented musical pattern and the supplied melodic theme.
X:1
L:1/8
M:6/8
K:F
['e2 f g2']  
X:1
L:1/8
M:6/8
K:F
 G2 g gag dBG | A2 B c2 d ecA | G2 g gag dBG |1 (3efg e faf gdB :|2 (3ABc A BGE E2 B | 
 e2 f g2 e fdB | e2 f g2 a bge | gbg faf (3efg e | BdB AcA BGE | e2 f g2 e fdB | e2 f g2 a bge | 
 faf g2 e dBG | (3ABc A BGE E2 F ||  