Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/8
M:2/4
K:Bb
['cA GFEc', 'BB G,2!f! cc Bdfe dB G2 |!p!', 'Tc2 f/e/d/c/B/A/G/F/ EG C2 fcdB cABG AFGE', 'cBBB AFEF EG C2 |!f! a2 g2']  
X:1
L:1/8
M:2/4
K:Bb
 cc/B/!p! cA | GFEc | DFEG | GF E2 |!f! cc/B/ cA | GFEc | B/c/d/e/f/d/c/B/ | c2 c2 :: G,2 BB | 
 G,2!f! cc | Bdfe | dB G2 |!p! cc/B/ cA | GFEc | B/c/d/e/f/d/c/B/ | c2 c2 :| 
[M:3/4][K:F]"^Trio" Ac!p! Tc2 | Ac Tc2 | f/e/d/c/B/A/G/F/ | EG C2 | fcdB | cABG | AFGE | F2 F2 :: 
"_pezc" Accc | cBBB | AFEF | EG C2 |!f! a2 g2 | f2 d2 | cBAG | F2 F2 :|  