Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
M:2/2
K:G
['g>a b>gd>B G>Bd>g f>ec>A E2 e2 d>cA>FD>cB>A', 'a2 g>ec>A ^G>AB>c d>ef>^g a2 b2 a>ge>c']  
X:1
L:1/8
M:2/2
K:G
 g>a | b>gd>B G>Bd>g | f>ec>A E2 e2 | d>cA>FD>cB>A | G>AB>c d2 g>a | b>gd>B G>Bd>g | f>ec>A E2 e2 | 
 d>cA>FD>cB>A | G2 B2 G2 :|[K:D] a2 | g>ec>A ^G>AB>c | d>ef>^g a2 b2 | a>ge>c A>gf>e | 
 f>dA>F D2 a2 | g>ec>A ^G>AB>c | d>ef>^g a2 b2 | a>ge>c A>gf>e |1 d2 f2 d2 :|2 d2 c2 =c2 :|  