Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/8
M:3/8
K:Amin
['c e d']  
X:1
L:1/8
M:3/8
K:Amin
 A | c e d | e/ d/ c A | c e d | e2 A | c e d | e/ d/ c A | c e d | e2 A | c e d | B B d | 
 c/ B/ A c | B E2 | c e d | B B d | c/ B/ A G | A3 |]  