Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
M:4/4
K:C
['d fed cBA cec', 'fed cBA']  
X:1
L:1/8
M:4/4
K:C
 BEA |[M:6/8][K:D]SOSOO .!fermata!PMTuCO Md2 d fed | cBA cec | BcB fdB | dcB fdB | d2 d fed | 
 cBA cec | ABA ecA |1 (A/B/c)A ecA :|2 (A/B/c)B d2 |: ded def | efe dfg | fgf f2 ^g | aba a2 g | 
 fgf fga | gfe efe | d3 fed | cBA ced | BcB fdB | (B/c/d)B fdB | dcd fed | cBA cec | ABA ecA | 
 (A/B/c)A d3 :|  