Develop a musical composition by integrating the alphabetically represented musical pattern and the supplied melodic theme.
X:1
L:1/8
M:4/4
K:Emin
['e2 dB', 'e2 dB']  
X:1
L:1/8
M:4/4
K:Emin
 E2 GB e3 d | de A2 AGAB | G2 Bd g3 f | fgag ffBd | e2 dB e2 dB | A2 AB ED D2 |1 G6 AG | 
 F3 A FAFD :|2 G3 A F2 ED | E4 z ABd || e4- edgf | d2 d2- dABd | gfdB e2 dB | de z E- EABd | 
 e2 dB e2 dB | A2 AB ED D2 |1 G6 AG F3 A FABd :|2 G3 A F2 ED | E8 ||  