Design a musical creation that involves the supplied motif and respects the established alphabetical structure.
X:1
L:1/8
M:2/2
K:Gmix
['Bcdc Bcdc', 'BGAB Gdef']  
X:1
L:1/8
M:2/2
K:Gmix
|: Bcdc Bcdc | BGDE FGAc | Bcdc Bcdc | BGAB G3 A | Bcdc Bcdc | BGDE FGAc | Bcde fedc |1 
 BGAB G3 A :|2 BGAB Gdef |: g3 f dedc | Bcde f2 ef | dggf dedc | BGAB Gdef | g3 f dedc | 
 Bcde fdef | gefd ecdc |1 BGAB Gdef :|2 BGAB G4 |]  