Construct a musical piece utilizing the given sequence in alphabetical form and the supplied motif.
X:1
L:1/4
M:4/4
K:Gmix
['d3/2 c/ B', 'g f', 'B c']  
X:1
L:1/4
M:4/4
K:Gmix
 d3/2 c/ B e | d3/2 c/ B d | e d c B | A2 G g | f d e c | d B c A | B A/G/ ^F/ G F/ | G2 G2 :: 
 d d/d/ e f | g f/e/ d g | f d e c | d c/B/ A d | c e d f | e g f e/d/ | ^c d2 c | d2 d2 :: 
 B B c e | d3/2 c/ B G | A B c A | B G G ^F | G3/2 d/ e ^f | g d B A/G/ | ^F G2 F | G2 G2 :|  