Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:4/4
K:C
['AGAB AEFG Ac (3(efg) a2 (3(efg) aecA', 'aece fdBG AcEc', 'A2 (cB) AGAB cEGB cABc eAce fdge', 'efec ABcA']  
X:1
L:1/8
M:4/4
K:C
[M:2/2][K:A] .abc (cB) | AGAB AEFG | Ac (3(efg) a2 (3(efg) | aecA dfgf | (3(efe) (3(dcB) eaec | 
 AGAB AEFG | Ac (3(efg) a2 (3(efg) | aecA dBGB | A2 A2 A2 :: (3(efg) | aece fdBG | AcEc AcEc | 
 BdEd BdEd | ceAe ceAe | aece fdBG | AcEc BABc | dfed cBAG | A2 A2 A2 :| (cB) | AGAB cEGB | 
 cABc eAce | fdge afdf | (3(efe) (3(dcB) AGFG | AGAB cEAc | BABc defg | agaf edcB | A2 A2 A2 :| 
 (cd) | efec ABcA | BEGB AGAB | cAce dcBA | GABG Edcd | efec ABcA | BABc defg | agaf edcB | 
 A2 A2 A2 :|  