Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:6/8
K:D
['d cBc', 'd A>AA A2 d B>BB B2 d']  
X:1
L:1/8
M:6/8
K:D
 (3A/B/c/ | dcd f2 d | cBc e2 d | cBc ABc | dcd f2 (3A/B/c/ | dcd f2 d | cBc e2 d | cBc ABc | 
 (d3 d2) :: d | A>AA A2 d | B>BB B2 d | cBc ABc | dcd f2 d | A>AA A2 d | B>BB B2 d | cBc ABc | 
 (d3 d2) :|  