Assemble a musical creation that incorporates the furnished motif and conforms to the predetermined alphabetical structure.
X:1
L:1/8
Q:1/4=90
M:6/8
K:Bb
['F2 F', '=G F2 F (FG)A B3- B2']  
X:1
L:1/8
Q:1/4=90
M:6/8
K:Bb
"Bb" F2 F DFB | d2 ^c d2 =c |"Eb" B>BB cBG |"Bb" F3- FzF |"F7" F2 F (CD)E | A2 ^G A2 =G | 
 F>FF GFE |"Bb" D3- D2 z | F2 F DFB | d2 ^c d2 =c |"Eb" B2 B cBG |"Bb" F3- FzF |"F7" F2 F CDE | 
 A2 ^G A2 =G | F2 F FGA |"Bb" B3- B2 z ||"Bb" F2 F (DF)B | d3- (d^cd) |"Eb" B2 B (cB)G | 
"Bb" F3- FzF |"F7" F2 F CDE | A2 ^G A2 =G | F2 F GFE |"Bb" D3- D2 z | F2 F (DF)B | d3- (d^cd) | 
"Eb" B2 B (cB)G |"Bb" F3- FzF |"F7" F2 F CDE | A2 ^G A2 =G | F2 F (FG)A |"Bb" B3- B2 z |]  