Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/8
M:2/4
K:G
['A2 B2']  
X:1
L:1/8
M:2/4
K:G
 D | G2 FG | A2 GA | BGdB | A3 z | A2 dc | BAGE | D3 z | G2 A2 | B2 BB | A2 B2 | dcBA | G3 |]  