Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/16
M:2/4
K:F
['fcAc fcAc', 'gfed cBAG FCA,C FAcf ecbg']  
X:1
L:1/16
M:2/4
K:F
 (3cde | fcAc fcAc | fefg agfe | fcAc fcAc | egec egec | fcAc fcAc | fefgafga | bagf gfed | 
 cbag f2 :: ba | gfed cBAG | FCA,C FAcf | ecbg ecbg | fcc'afcba | gfed cBAG | FCA,C FAcf | 
 ecbg ecBG | F2A2F2 :|  