Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/4
M:6/4
K:D
['d A d3 A2', 'F/G/ A3/2 B/ A F D F']  
X:1
L:1/4
M:6/4
K:D
 d2 A (B/c/) d A | d3 A2 B | =c3/2 d/ c c G E | =c3 C2 ^c | d2 A B/c/ d A | d3 A2 G | F D F E C E | 
 D3- D2 || F/G/ | A3/2 B/ A F D F | A3 F2 E/F/ | G3/2 A/ G E C E | G3 E2 F/G/ | A3/2 B/ A F D F | 
 A3 a2 g | f d f e c e | d3- d2 |]  