Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/8
M:4/4
K:G
['(3def gGGG BGdB ABcd edef', 'G2 dc BGDG BBGB ABcd eedc BGDG']  
X:1
L:1/8
M:4/4
K:G
 (3def | gGGG BGdB | ABcd edef | gGGG BGdG | eGfG g2 (3def | gGGG BGdB | ABcd edef | gfededcB | 
 cedB G2 :| dc | BGDG BBGB | ABcd eedc | BGDG BGdG | eGfG gddc | DGGG BGAG | FGABcdef | gfed edcB | 
 cedB G2 :|  