Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/8
M:4/4
K:G
['B2 AG', 'Bd g3 a gfed edef g2 ge']  
X:1
L:1/8
M:4/4
K:G
 GA | B3 c B2 AG | BGBd efge | dege dBGA | B2 AG A2 GA | B3 c B2 AG | BGBd efge | dege dBAc | 
 B2 G2 G2 :: Bd | g3 a gfed | edef g2 ge | dege dBGA | B2 AG A2 Bd | g3 a gfed | edef g2 ge | 
 dege dBAc | B2 G2 G2 :|  