Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:4/4
K:D
['GAeA FAfa (3gbg (3faf (3ege (3dfd', 'FF fg ef', 'BF Bd fd']  
X:1
L:1/8
M:4/4
K:D
 AA | FAfA FAfA | GAeA FAfa | (3gbg (3faf (3ege (3dfd | (3cec (3BcB (3AcA (3GBG | FAfA (3FAd fA | 
 GAeA FAfa | (3gbg (3faf (3ege (3dfd |1 (3cBA Bc d2 :| (3cBA Bc dF FF |: fg ef df cd | 
 BF Bd fd Bd | (3c^AF ^Ac fe dc | BF Bd fd Bg | fg ef df cd | BF Bd fd Bd | cF ^Ac fe dc |1 
 BF dc B2 ag :|  