Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/4
M:3/4
K:Gmix
['c B', 'B A']  
X:1
L:1/4
M:3/4
K:Gmix
 c e e | e2 f | g2 f | e2 e | e2 c | B c e | f2 f | e2 e | c d c | c B A | d d c | B A3/2 F/ | 
 A2 F | E F A | c2 B | A2 z || B d d | d2 d/e/ | f2 e | d2 d | d2 B | A A d | e2 e | d2 d | B c B | 
 B A G | c c B | A G E | G2 E | D E G | B2 A | G2 ||  