Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
M:3/8
K:C
['g2 e/f/', 'd/e/fg d2 g a/g/fe', 'cd/e/f/e/ d2 e']  
X:1
L:1/8
M:3/8
K:C
 g2 e/f/ | g2 e/f/ | gfe | d3 | def | g>ag | fed |1 e2 c :|2 c2 |: c | d/e/fg | d2 g | a/g/fe | 
 dec | d/e/fg | d2 g | a/g/fe | d2 :: G | cd/e/f/e/ | d2 e | cd/e/d/c/ | BGG | cd/e/f/e/ | d2 e | 
 cd/e/d/B/ |1 c2 :|2 c3 |]  