Compose music pieces conforming to the prescribed pattern and incorporating the provided musical concept.
X:1
L:1/8
M:3/8
K:F
['z cAF']  
X:1
L:1/8
M:3/8
K:F
 AB | c2 f | cA z | cAc | B2 c | A2 z | cAF | G2 c/B/ | AF z | cAF | G>FG/A/ | F2 z | z |]  