Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/4
Q:1/2=110
M:2/2
K:F
['f/g/ a f', 'c3 c/B/ A c f c d2']  
X:1
L:1/4
Q:1/2=110
M:2/2
K:F
 f/g/ | a f c f | f2 A2 | B/c/d/B/ G/A/B/G/ | A/B/A/G/ F f/g/ | a f b a | g2 f2 | e/f/ g G =B | 
 c3 :: c/B/ | A c f c | d2 c2 | B/c/ d g b | e2 c2 | a f2 d | b g2 f | e/f/ g c e | f3 :|  