Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:1/4=100
M:6/8
K:C
['A G E']  
X:1
L:1/8
Q:1/4=100
M:6/8
K:C
 G A B B3 | G d c B3 | (cB) A G E G | (GA) G D3 | E E E G ^F E | ^F B B3 | c B A G E C | E2 D C3 |]  