Develop a musical piece with the given motif, ensuring that it reflects the mentioned musical form.
X:1
L:1/8
Q:3/8=84
M:6/8
K:Bb
['(D/E/F)F TF2 d', '(fd).f (bf)._a'  
X:1
L:1/8
Q:3/8=84
M:6/8
K:Bb
"^Slowish" E | (D/E/F)F TF2 d | Tc>Bc (dB)G | (D/E/F)F TF2 d | (Tc3{Bcd)} G2 z | (D/E/F)F TF2 d | 
 Tc>Bc dBG | (g/a/b).g fdb | fdB B2 :| g | (fd).f (bf)._a | (ge).g fdB | (fd).f (bf)._a | 
 Tg>fg c2 g | (fd).f (bf)._a | (ge).g fdB | Tg>ab fdB | (FB).A B2 g | (fd).f (bf)._a | 
 (ge).g (fd).B | (fd).f (bf)._a | Tg>fg c2 .g | (fd).f (bf)._a | (ge).g (fd).B | .g(ec) .f(dB) | 
 (FB).A B2 |]  