Develop a musical composition using both the specified melodic theme and the alphabetical pattern naming.
X:1
L:1/8
Q:1/4=240
M:2/4
K:Cphr
['c=Bdc c=Bdc', 'C4 =EFGA BA G2 GC=EF A2 G2', 'G2 GC=EF A2 G2 CGAA CTGAG |1']  
X:1
L:1/8
Q:1/4=240
M:2/4
K:Cphr
|: c=Bdc | c=Bdc | c=Bdc | cBBA | B=AcB | B=AcB | B=AcB | B4 | CDFA | =Bc d2 | cd c2 | cAFG | 
 B2 A2 | GA^FG | G2 =E2 | C4 :: =EFGA | BA G2 | GC=EF | A2 G2 | CGAA | CTGAG |1 CTGAG | CTGAG :|2 
 GAGF | G=E C2 |: =EFGA | BA G2 | GC=EF | A2 G2 | CGAA | CTGAG |1 CTGAG | CTGAG :|  