Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/8
M:2/4
K:C
['Gcec e2 dB G4 edef g2 gg']  
X:1
L:1/8
M:2/4
K:C
 Gcec | e2 dB | G4 | edef | g2 gg | gfed | f2 gf | edec | g2 dB | c4 |]  