Hi
It's a twelve-bar blues in the key of F - 'F concert' means that for instruments that play in 'concert pitch' (String instruments, flutes, piano etc.) it's in the key of F. For historic reasons, most brass and woodwind instruments are transposing instruments: trumpets are built in the key of Bflat, alto saxophones in Eflat for example. If you want a trumpet player to play a Concert pitch F, you would write a G, have a look at this transposition chart if you want more detail
http://www.musictheory.halifax.ns.ca/transposition.html
Incidentally, bass guitar, double bass and guitar are also transposing instruments - the actual sound is an octave lower than written - this is purely for ease of writing/reading - if notated at actual pitch, the number of ledger lines below the stave would make for difficult reading
As far as you're concerned, it's just a 12 bar in F - have fun with it.
