Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/16
M:2/4
K:D
['BB-BB BGAB c2<c2 c2cB Af-ff fdef']  
X:1
L:1/16
M:2/4
K:D
 DE |"D" F2BF AFBF |"D" AFBF A2DE |"D" F2BF AFBF |"A7" Ac-cc c2cB |"A7" ABcA BcB2 |"A7" ABcA B2cB | 
"A7" ABcd egfe |"D" d2dc d2 :| fg |"D" a2ab afdB |"D" A4 A2fg |"D" a2ab afge |"G" B6 ef | 
"A7" gfef gfef |"A7" gfe2 e2ef |"A7" gefd edcB |"D" A6 fg |"D" a2ab afde |"D" f2<f2 f2>e2 | 
"D" dd-dd"D7" e2f2 |"G" g8 |"G" gb-bg b2ag |"D" fa-af a2fd |"A7" ABcd egfe |"D" d4 ||[K:G]"D7" |: 
 G2>A2 |"G" BB-BB BGAB |"C" c2<c2 c2cB |"D7" Af-ff fdef |"G" gfga g2dc |"G" BB-BB BGAB | 
"C" c2<c2 c2cB |"D7" Af-ff fdef |1"G" g4 :|2"G" g6 |]  