Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:2/4
K:F
['(F/E/F/G/) FA GF F2 A/G/A/B/ Ac BA', 'af de/f/ ge cd/e/ fdc=B', 'c2 c3/2d/4c/4 _BA ccBA d3/2e/4d/4 cB ddcB', 'Cc/=B/ c_B Afef']  
X:1
L:1/8
M:2/4
K:F
 (F/E/F/G/) FA | GF F2 | A/G/A/B/ Ac | BA A2 | g(e/d/) c(g/f/) | A(a/f/) ca | bgfe | f2 F2 :: 
 af de/f/ | ge cd/e/ | fdc=B | c/B/c/d/ cc | af de/f/ | ge cd/e/ | fdc=B | c2 c2 :: 
 c3/2d/4c/4 _BA | ccBA | d3/2e/4d/4 | cB ddcB | c3/2d/4c/4 BA | ccBA | BGFE | F2 F2 || Cc/=B/ c_B | 
 Afef | Cc/=B/ c_B | Afef | dbbb | caaa | (g/a/g/f/) (e/f/e/d/) | (c/d/c/B/) (A/B/A/G/) | 
 c3/2d/4c/4 BA | ccBA | d3/2e/4d/4 cB | ddcB | c3/2d/4c/4 BA | ccBA | BGFE | F2 F2 |]  