Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/8
M:4/4
K:Dmix
['AD D2', 'E2 d2 fg agfe defd e^cAG FA', 'df f2', 'dD D2']  
X:1
L:1/8
M:4/4
K:Dmix
|: AD D2 BAGB | A2 BG AGFG | AD D2 BAFA | G2 cA GE E2 | AD D2 BAGB | ADBD AGFD | C2 EG cBAF | 
 GcAF GE E2 :: d2 fg agfe | defd e^cAG | FA A2 cAFA | G2 cA GE E2 | df f2 af f2 | ge e2 fdBd | 
 eA{c}AG FAcA | GcAF GE E2 :: df f2 df f2 | defd ^cABc | df f2 dAFA | GFEF GEFE | defd ^cdec | 
 B^cdB AGFD | C2 EG cBAF | G2 AF GE E2 :: dD D2 cD D2 | BD D2 AD D2 | dD D2 cAFA | G2 cA GECE | 
 dD D2 cD D2 | BAGB AGFD | C2 EG cBAF | GcAF GFED :|  