Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/16
M:4/4
K:C
['D6 E2 F4']  
X:1
L:1/16
M:4/4
K:C
 z8 z4 D4 | D6 E2 F4 G4 | A4 (G2F2) G4 c4 | A8 D6 E2 | F4 G8 z2 E2 | G4 E3 (F G4) E3 (F | 
 G4) G4 C4 (D3 E) | F6 D2 E6 C2 | A,4 D4 D4 z4 |]  