Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:4/4
K:C
['c3 G EGce dcBA (3Bcd AB cGEG', 'B3 c', 'A,2 G,A,CD']  
X:1
L:1/8
M:4/4
K:C
|: c3 G EGce | dcBA (3Bcd AB | cGEG CGEG | G,GFE DG, (3B,A,G, | B,3 C DE (3FED | CEDF E3 G | 
 F3 A GABc | B3 c dB c2 :: g3 f edcB | cGEG CGEG | ^c2 cd ef (3gfe | fed^c dAFA | B3 c defd | 
 cGDF E3 G | F3 A GABc | B3 c dB c2 :: E2 (3FED EA, A,2 | G,A,CD CA, A,2 | G,A,CD CEDF | 
 E3 B cBAG | EAAB c3 B | cBAG E3 D | (3EFG DC B,3 G, | (3A,B,C DB, A,3 z :|  