Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:6/8
K:F
['f2 c c>dB A2 F F>GA', 'F2 c c>Ac f2 f dBd g2']  
X:1
L:1/8
M:6/8
K:F
 (3c/d/e/ | f2 c c>dB | A2 F F>GA | B2 G A>GF | GEC C2 e | f2 c c>dB | A2 F F>GA | BcA GFE | 
 F>GF F2 :| c | c>Ac f2 f | dBd g2 g | bag fef | gec c2 A | BAB GAB | Ace f2 d | cAF BGE | 
 FGF F2 c | c>Ac f2 f | dBd g2 g | bag fef | gec c2 A | fef gfg | aga b2 d' | c'af bge | fgf f2 ||  