Generate harmonious tunes by incorporating the specified letter-based framework and the presented motif.
X:1
L:1/4
M:4/4
K:C
['E F']  
X:1
L:1/4
M:4/4
K:C
 E F ^F | G2 G2 | E G2 G/G/ | A2 A3/2 A/ | A c B A | G2 c2 | c c B c | d4- | d2 c d | e2 e2 | 
 e d c A | c2 c2 | A G E F | G2 e2 | e2 d2 | c4- | c ||  