Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/8
M:4/4
K:Cmin
['c2 =BB c2', 'EF GF EF']  
X:1
L:1/8
M:4/4
K:Cmin
 c2 =B2 c2 GB | cc =B2 c2 _BA | GG (FE) F2 G2 | C6 GG | c2 =BB c2 GB | c2 =BB c2 _BA | 
 G2 FE F2 G2 | C6 || D2 | EF GF EF GF | EF GA B2 G2 | FG AG FG AG | FG (AB) c2 d2 | e2 (de) f2 e2 | 
 (de) (dc) =B2 AA | G2 FE F2 G2 | C6 |]  