Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:2/4
K:D
['EE EE']  
X:1
L:1/8
M:2/4
K:D
 D | FF DD | FF DF | FF GF | EE EE | EE CC | EE C C/C/ | EE F E/E/ | D/D/ DD D | F/F/ FD D | 
 FF DF | FF G F/F/ | FE EF | GA B c/c/ | dA FD | EE EE | F/F/ ED ||  