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:A
['', 'cAdB efga', 'eAce dBed cAdc B3 c defg aA', 'E2 cAdB efga |1 ecdB Afed :|2', 'Aefg afba geag fdgf eAce dBed cAdc', 'cAce aAgA fAec defd ceaf ecdB']  
X:1
L:1/8
M:2/2
K:A
 ed |: cAdB efga | ABcA BE E2 | cAdB efga |1 edcB A2 ed :|2 edcB Aefg || afba geag | fdaf eAce | 
 dBed cAdc | B3 c defg | aA A2 cAce | aAgA fAec | defd ceaf | ecBc A ||"^variations" fed |: 
 cAdB efga | ABcA BG E2 | cAdB efga |1 ecdB Afed :|2 ecdB Aefg || afba geag | fdgf eAce | 
 dBed cAdc | BABc defg | aA A2 cAce | aAgA fAec | defd ceaf | ecdB A2 ||  