Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/8
M:2/4
K:C
['|[M:2/4] C2']  
X:1
L:1/8
M:2/4
K:C
 (C<G,) G,G, | E2 E2 | D2 (CG,) |[M:3/4] C2 C2 C z |[M:2/4] C2 CC | E2 E2 | D2 (CG,) | (C2 G,2) | 
[M:3/4] G,2 G,2 G, z |[M:2/4] (CG,) G,G, |[M:3/4] C2 DD (3C(CG,) |[M:2/4] C2 (CG,) | 
[M:3/4] G,G, G,2 G, z | G,2 G,G, G,G, | C2 DD (3C(CG,) |[M:2/4] C2 (CG,) |[M:3/4] G,G, G,2 A, z | 
[M:2/4] G,2 G,G, | z G, G, z | G,2 G,G, |]  