Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/8
M:4/4
K:D
['A,B, D2']  
X:1
L:1/8
M:4/4
K:D
 A,B, | D2 DE F2 FE | D2 DB, A,2 A,B, | D2 DD D2 FA | B4 A3 A | B2 BA F2 FA | GF ED B,2 A,B, | 
 D2 FA B2 AF | E4 D4 ||  