Develop a musical piece with the given motif, ensuring that it reflects the mentioned musical form.
X:1
L:1/4
M:6/4
K:D
['c3/2 d/ e', 'e f'  
X:1
L:1/4
M:6/4
K:D
 d2 f d d a | c3/2 d/ e f3/2 e/ d | a2 g a a g | a e4 d | e e e e2 d | c3/2 d/ e A2 e | 
 f2 d c3/2 d/ e |1 d3 f3 :|2 d3 f2 || d | c A A e2 d | c A B A2 e | f d e f d e | f3 g3 | 
 a a a c3/2 d/ e | f f e f d a | c c d e c A |1 d3 f2 :|2 d3 f3 ||  