Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/4
Q:1/4=200
M:3/4
K:F
['G (A', '(G A)']  
X:1
L:1/4
Q:1/4=200
M:3/4
K:F
 G (A B) | c (B A) | c c2 | d (e3/2 d/) | c (c B) | G3 | G (A B) | c (c B) | G (A G) | E (G A) | 
 B (A/ G3/2) | F3 || F (G A) | c (c B) | G (A G) | E (G A) | B (A/ G3/2) | F3 | F (G A) | c (c B) | 
 G (A G) | E (G A) | B (A/ G3/2) | F3 | F (G A) | c (B A) | c c2 | d (e3/2 d/) | c (c B) | G3 | 
 G (A B) | c (c B) | G (A G) | E (G A) | B (A/ G3/2) | F3 ||  