Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/4
M:4/4
K:F
['', 'G A F A B c2 f/']  
X:1
L:1/4
M:4/4
K:F
!mf! |]"^1" F G | A F |"^2" A B | c2 |"^3" f/ f/ e/ e/ | f/ c/ A/ F/ |"^4" c C | F2 |]  