Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/4
M:3/4
K:G
['A B c d c B', 'B A2'  
X:1
L:1/4
M:3/4
K:G
 D | G F G | A B c | d c B | A2 B | G F G | A B c | d c B | A2 B/c/ | d2 B | c2 B | A G B | A2 D | 
 G2 A | B c d | c B A | G2 || B | A2 B/c/ | d3 | B G B | A2 B | A2 B | A2 D | G2 A | B c d | 
 c B A | G2 ||  