Compose melodies using the given motif and follow the designated arrangement.
X:1
L:1/8
M:3/8
K:Bb
['(d/B/) f2', 'f3 fdg ecf dB/c/d/B/ cAF fdg eca'  
X:1
L:1/8
M:3/8
K:Bb
|: B2 (d/B/) | f2 (d/B/) | f2 (e/c/) | dBB | b2 g/=e/ | cba | gf=e | f3 :: fdg | ecf | dB/c/d/B/ | 
 cAF | fdg | eca | bBB | B3 :|  