Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
Q:1/8=128
M:4/4
K:D
['D2 FD B,>D', 'de f<a e<f']  
X:1
L:1/8
Q:1/8=128
M:4/4
K:D
|: A,2 | D2 FD B,>D A,<D | C>D EF G2 FE | D2 FD B,>D A,B | A>B dF A2 GF | G>F G<e F>E F<d | 
 E>F G/F/E/D/ C>D E>F | A,2 F<D B,>D G<B | A>B d<c d3 :: de | f<a e<f d2 Ad | c>d ef g2 fe | 
 d>c B<d A>G F<A | G<B, F>D E3 A, | D2 A,F B,>D G<B | A>B d<c d2 de | f<a e<f d<f B<d | 
 A>B d<c d3 :|  