Develop a musical composition by utilizing the given alphabetic notation and supplied motif.
X:1
L:1/4
M:3/2
K:G
['A A']  
X:1
L:1/4
M:3/2
K:G
 G2 | A2 A A A A | B2 B2 A2 | G/F/G/A/ B B A G | F2 z2 G2 | A3 A A A | B2 B2 A2 | G A G2 F2 | 
 G2 z B B A | B2 z B B A | B2 z B A A | G/F/G/B/ A G G F | G4 |]  