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:D
['(3fgf (3efe', '(3fgf (3efe']  
X:1
L:1/8
M:2/2
K:D
 f4 e4 | d>dd>d d2 A2 | a4 g4 | f>ff>f f2 d2 | f>ff>a e>ee>g | d>dd>f e2 A2 | 
 (3ded (3efe (3fgf (3efe | (3aba (3gag (3fgf (3efe | d>dd>d d4 :: (3fgf (3fgf (3efe (3efe | 
 (3gag (3gag f4 | f>ff>a e>ee>a | d>dd>f e2 A2 | (3fgf (3fgf (3efe (3efe | (3gag (3gag f4 | a8 | 
 a8 | (3aba (3gag (3fgf (3efe | d>dd>d d4 :|  