Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
M:2/2
K:A
['B e2 de A/A/A Af =g2 fe', 'Aa=gb ecAc']  
X:1
L:1/8
M:2/2
K:A
 B | e2 de A/A/A Af | =g2 fe d=GBd | e2 ef aece | =g2 dB A/A/A A :| B | Aa=gb ecAc | Bd=ge dB=GB | 
 Aa=gb ecAc | dB=GB A/A/A/ AB | Aa=gb ecAc | Bd=ge dB=GB | ABcd ecbf | ecdB A/A/A A :|  