Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/4
M:3/4
K:D
['d e3/2 f/', 'e f', 'c B c'  
X:1
L:1/4
M:3/4
K:D
 d e3/2 f/ | c B3/2 A/ | d e3/2 f/ | g2 b | a f3/2 d/ | B/ e3/2 d/ |1 c B c | A3 :|2 c B c | 
 d2 z |: f g b | f g e | f g b | f g e | f e d | B e d | c B c | d2 A :| d e3/2 f/ | c B3/2 A/ | 
 d e3/2 f/ | g2 b | a f3/2 d/ | B e3/2 d/ |1 c B c | A3 :|2 c B c | d2 z ||  