Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/8
M:3/4
K:G
['B4 GB (3BcB (3ABA G2 |{g} f4', 'g2 fefg a2 g4 a2 gfga b2']  
X:1
L:1/8
M:3/4
K:G
 B4 GB | (3BcB (3ABA G2 |{g} f4 de | (3fgf (3efe d2 | (bg)(gd)(dB) | (bg)(gd)(dB) | fg a2 g2 | 
 g2 f4 :: f4 g2 | fefg a2 | g4 a2 | gfga b2 | (bg)(gd)(dB) | (bg)(gd)(dB) | (3BdB G2 DB, | 
 D4 B,2 :|  