Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/8
M:3/4
K:G
['GB d2 d2 e/f/g/e/ d4 cB A2', 'cB A2']  
X:1
L:1/8
M:3/4
K:G
 GB d2 d2 | e/f/g/e/ d4 | cB A2 Ac | BA G4 :: cB A2 A2 | G/A/B/c/ d4 | cB A2 Ac | BA G4 :|  