Construct a musical work using the alphabet-based form and the provided motif.
X:1
L:1/4
M:4/4
K:C
['A G']  
X:1
L:1/4
M:4/4
K:C
 C | G A G F | E3/2 E/ D3/2 D/ | E E F A | G2 z G | c c c/B/ A | G c G z | F2 E c | A F F/E/ D | 
 C z2 |]  