Produce musical compositions that observe the prescribed structure and blend the offered musical idea.
X:1
L:1/4
M:2/2
K:F
['c f e f c f2 c3/2', 'A B3/2 c/ d (c/B/) A3/2'  
X:1
L:1/4
M:2/2
K:F
 c | f e f c | f2 c3/2 c/ | d (B/A/) G c | A F2 :: A | B3/2 c/ d (c/B/) | A3/2 G/ F A | 
 B3/2 c/ d (c/B/) | A3/2 B/ c (B/A/) | (G A) (B c) | d3/2 e/ f A | B A G c | A F2 :|  