Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/8
M:4/4
K:D
['D<DF<A (d>e)(f>e) d/c/B/A/', '(g>f)(e>d) c/d/e/d/ c<A']  
X:1
L:1/8
M:4/4
K:D
 A, | D<DF<A (d>e)(f>e) | d/c/B/A/ G/F/E/D/ C/D/E/D/ C<A, | D<DF<A (d>e)(f>e) | 
 d/c/B/A/ B/g/f/e/ f<dd :| f | a>ba<f d'>c'ba | (g>f)(e>d) c/d/e/d/ c<A | a>ba<f d'>c'ba | 
 c'/c'/b/a/ b<c' (d'2 d)(3a/4b/4c'/4 | (d'>d)(c'>d) (b>d)(a>f) | (g>f)(e>d) c/d/e/d/ c<A | 
 F<D(A>F) (G>F)E>e | d/cB/A/ B<c (d2 d) |]  