Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/4
M:4/4
K:D
['F A A', 'z d d A']  
X:1
L:1/4
M:4/4
K:D
 F A A B/A/ | F A A G | F A A B/A/ | F E E3/2 D/ | F A A B/A/ | F A A z/ B/4c/4 | d d e/d/B/A/ | 
 F E D z :: d d A B/c/ | d e f z | d d A B/A/ | F E D z :|  