Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
Q:1/4=130
M:4/4
K:D
['d2 c2 B3 B cBAF A2', 'fe d2'  
X:1
L:1/8
Q:1/4=130
M:4/4
K:D
"_VB" f>e | d2 c2 B3 B | cBAF A2 Fe | f2 f2 e2 de | f^gaf b2 fe | d2 c2 B3 B | cBAF A2 fe | 
 d2 cB ^ABcA | B4 B2 || z2 | f3 e f d'2 c' | bafe f2 z2 | a3 f e2 de | f^gaf b2 fe | d2 c2 B3 B | 
 cBAF A2 fe | d2 cB ^ABcA | B4 B2 |]  