Develop musical pieces that conform to the specified format and include the suggested musical theme.
X:1
L:1/4
Q:1/2=100
M:2/2
K:D
['d c/B/ A d e g f', 'A2 e3/2 d/ c (B/A/) d f'  
X:1
L:1/4
Q:1/2=100
M:2/2
K:D
 d c/B/ A d | e g f e/d/ | g/f/e/d/ c B | c d e2 | d D F A | B c/d/ c A | e3/2 d/ c/B/A/B/ | 
 E ^G A2 || e3/2 d/ c (B/A/) | d f ^A F | f B g/f/e/d/ | c2 B2 | d D F A | B c/d/ c A | 
 a d/c/ B g/f/ | e2 d2 |]  