Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
M:3/4
K:F
['G2 B2 AG']  
X:1
L:1/8
M:3/4
K:F
 FA | c2 f2 ed | c2 A2 cA | G2 B2 AG | A4 FA | c2 c2 d/c/B/A/ | G2 B2 AG | F3 AGE | F4 |]  