Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/4
M:3/4
K:G
['d c']  
X:1
L:1/4
M:3/4
K:G
 D/D/ | G G D | G2 G/A/ | B B A | B2 (d/B/) | G B d | d c B | A2 (B/c/) | d c B | c2 B/c/ | d G A | 
 D2 D/D/ | G G A | B c e | d2 B/A/ | G B d | c F F | G2 ||  