Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:2/2
K:D
['fe (3def', 'faab afdf']  
X:1
L:1/8
M:2/2
K:D
 fe (3def edBd | fd{e}dc d2 ag | fe (3def edBc | dBAF TE2 D2 | fe (3def edBd | fd{e}dc defg | 
 afge fdec | dBAF TE2"^H" D2 || faab afdf | abaf gfeg | faab afdf | gfed TB2 A2 | faab afdf | 
 abaf gfeg | f>a (3aba g>b (3bc'b | gfef gb"^D.C."af |]  