Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/16
Q:1/8=160
M:4/4
K:D
['', 'f4 e4 dcdB A2A2 BcdB', 'ABAF ABAF', 'fAdf eAce', 'FAdA FAdA']  
X:1
L:1/16
Q:1/8=160
M:4/4
K:D
 d2 |: f4 e4 dcdB A2A2 | BcdB gfed cdef e2A2 | f4 e4 dcdB A2A2 | BcdB gedc e4 d4 :| 
"^2" ABAF ABAF BABc d2f2 | ABAF ABAF gfed cde2 | ABAF ABAF BABc defg | abaf abaf edef d4 :| 
"^3" fAdf eAce edcB BAdA | BcdB gfed cdef e2A2 | fAdf eAce edcd B2A2 | BcdB gedc e4 d4 :| 
"^4" FAdA FAdA FAdA g2f2 | FAdf gfed cdef ecAG | FAdf gfed dBAG G2F2 | abaf abaf edef d4 :|  