Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/4
M:4/4
K:G
['B c']  
X:1
L:1/4
M:4/4
K:G
 d | d B c d | e d/e/ c e | d B c A | B/c/B/A/ G B | A F G E | F/G/F/E/ D B | A G G F | G3 B | 
 c A/B/ c B | A3/2 G/ A B | c A A3/2 ^G/ | A3 A/G/ | F/G/F/E/ D d/c/ | B/c/B/A/ G B | A G G F | 
 G3 |]  