Compose music pieces conforming to the prescribed pattern and incorporating the provided musical concept.
X:1
L:1/8
M:2/4
K:F
['', 'dA c3 A'  
X:1
L:1/8
M:2/4
K:F
 c |:"F" fe dA | c3 A | d3 A |"C7" B3 c | fe dA | B3 d | e3 d |"F" A3 c | fe dA | c3 A | 
"D7" _e3 d |"Gm" g3 g |"C7" gg/g/ ^fg |"F" ac fa |"C7" b2 e2 |1"F" ff fc :|2"F" ff f z |: 
[K:Bb]"Bb" bf"G7" a2 |"Cm" ge g2 |"F7" ae g2 |"Bb" fd f2 | BB/B/ cB |"F7" Af e2 |1 Ae/e/ ed/c/ | 
"Bb" Bg f2 :|2"F7" f>g af |"Bb" bb b z |]  