Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/8
M:3/8
K:F
['f fac cfA Bgf ecf fac cfa', "c'2 a a2 f gg/f/g/a/"]  
X:1
L:1/8
M:3/8
K:F
 f | fac | cfA | Bgf | ecf | fac | cfa | gg/f/g/a/ | f2 :: c' | c'2 a | a2 f | gg/f/g/a/ | fac | 
 c'2 a | a2 f | gg/f/g/a/ | f2 :|  