Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
Q:1/4=140
M:2/4
K:C
['CC CD', 'cG AG'  
X:1
L:1/8
Q:1/4=140
M:2/4
K:C
 CC CD | E G2 G | AG AB | c4 | c>c cA | A G2 E | DD DE | D3 E | CC CD | EG GG | AG AB | c3 c | 
 cB AG | AG EC | D4 | C4- | C2 || D2 | CC CD | EG GE | DD DE | FA A>B | cc cG | AG EC/C/ | 
 D/D/D DE | DC A,G, | C2 E>D | C2 ED | C/C/C/C/ C/D/E/F/ | G3 E | D/D/D/D/ D/E/F/G/ | A3 G | 
 cd cG | AG EC | DC DE | C4 ||  