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:Bb
['FFF d3 BAG e2 z FFG F3']  
X:1
L:1/8
M:3/4
K:Bb
 FFF | d3 BAG | e2 z FFG | F3 E/E/ E2 | D2 z FFF | d3 BAG | e2 z FFG | F3 E E2 | D2 z GGG | 
 GAB>G G2 | F2 z BBB | ABc>B A2 | G2 z GGG | GAB>G G2 | F2 z BBB | AB c3 A | B2 z |]  