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:A
['b/a/g/f/ e<A c>A']  
X:1
L:1/8
M:4/4
K:A
 b/a/g/f/ | e>A c>A F<AE>D | C>EA>g a2 b/a/g/f/ | e<A c>A F<AE>C | E/F/G/A/ B>G A2 b/a/g/f/ | 
 e<A c>A F<AE>D | C>EA>g a2 b/a/g/f/ | e<A c>A F<AE>C | E/F/G/A/ B>G A2 AE | C<EE>G A<EE>D | 
 C<EA>B c2 d/c/B/A/ | C<EE>G B<EE>C | E/F/G/A/ B>G A2 AE | C<EE>G A<EE>D | C<EA>g a2 b/a/g/f/ | 
 (3ece (3fdf (3geg a>f | e/f/g/a/ b>g a2 ||  