Construct a musical composition using the provided motif and maintain the designated form.
X:1
L:1/4
Q:1/4=120
M:4/4
K:Bb
['A/ A/', 'c A/ B/ c', 'G z2 G z A z B'  
X:1
L:1/4
Q:1/4=120
M:4/4
K:Bb
 G | B3/2 B/ A/ A/ A/ A/ | G/ G/ G A G/^F/ | G d e d/c/ | d G G :: A B | c A/B/ c A/ B/ | 
 c A/ B/ c B/A/ | G d e d/c/ | d G G :| z2 | G z A z | B z c B/A/ | G d e d/c/ | d G G |]  