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
['', 'eBBB edef', 'B2 BB AGGG']  
X:1
L:1/8
M:4/4
K:G
 Bd |: e2 gf eBBB | edef g2 gf | eagf eBBB | Adde fagf | ebgf eBBB | edef ggga | b2 af gfed |1 
 egba g2 B/c/d :|2 egba g2 dc |: B2 BB AGGG | Bddg edgd | B2 BB AGGG | EAAA EAGA | B2 BB AGGG | 
 Bddg ed B/c/d | e2 gg aged |1 egba g2 gd :|2 egba g2 ||  