Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/8
M:4/4
K:G
['dBGB A2 AB', 'g2 BA GABd']  
X:1
L:1/8
M:4/4
K:G
 GA | B2 ge dBGB | A2 AB AGEF | G2 ge dBGB | AGAB A2 GA | Bdge dBGB | A2 AB AGEG | gfgd edBG | 
 AGFA G2 |] Bd | g2 BA GABd | edBA GABd | g2 BA GABd | eBdB AGEG | g2 BA GABd | edBA GABd | 
 gfgd edBG | AGFA G2 |]  