Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
M:6/8
K:D
['Add deg', 'agf gfe']  
X:1
L:1/8
M:6/8
K:D
 Add deg | f3 gfe | Add deg | fed B3 | Add deg | f3 gfe | f3 gfe |1 cde d2 B :|2 cde d2 f |: 
 agf gfe | fag fed | agf gfe | fed efg | agf gfe | fag fed | e3 gfe |1 cde d2 f :|2 cde d2 B ||  