Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
Q:1/4=120
M:2/4
K:D
['(a/g/) fadf (B2 A)d c/d/e/f/', 'a ^gggg']  
X:1
L:1/8
Q:1/4=120
M:2/4
K:D
 (a/g/) | fadf | (B2 A)d | c/d/e/f/ gf | (f2 e) (a/g/) | fadf | (B2 A)d | c/d/e/f/ gc | d3 :| a | 
 ^gggg | aA Aa | ^gggg | a3 a | ^gggg | aefc | dBe^G |"^D.C." A3 |]  