Construct a musical work using the letter-based representation of the specified pattern and the given melodic subject.
X:1
L:1/8
Q:1/2=90
M:2/2
K:F
['a (af)(fc) f2 (ba) g2 (fe) c3', 'f3 g (ge)(fg) a2 (gf) (ge)(fd) ^c3']  
X:1
L:1/8
Q:1/2=90
M:2/2
K:F
 a | (af)(fc) f2 (ba) | g2 (fe) c3 a | (af)(ge) (fa)(gb) | a2 (gf) f3 || g | (ge)(fg) a2 (gf) | 
 (ge)(fd) ^c3 a | (bg)(af) (ge)(fd) | d3 ^c d2 z b | (ba)(ag) (gc) z a | (af)(fd) (dB) z g | 
 (ge)(ec) (cA)(Bc) | A2 (GF) F3 |]  