Construct a musical piece that integrates the provided motif and corresponds to the indicated musical structure.
X:1
L:1/4
Q:1/4=120
M:6/4
K:Bb
['G G']  
X:1
L:1/4
Q:1/4=120
M:6/4
K:Bb
 B B B A A A | G G G F3 | G G G A A F | B B B c3 | d e f e e e | d d d c3 | B B B A A A | 
 G G G F2 F | G G G A A F | B B B c d e | f3/2 e/ d c d ^F | G G A B3 |]  