but...some tunes that would be good to play in your head, as Okota said
Powerman 5K 'supervillian'
Metallica 'all nightmare long'
nickelback 'side of a bullet'
Avenged Sevenfold 'Scream','critical acclaim'
Static X 'Destroyer'
Drowning pool 'bodies' 'soldiers'
Johnny Cash 'when the man comes around', 'riders in the sky', 'rusty cage'
Saliva 'click click boom', 'always', 'ladies and gentelmen'
Shinedown 'Devour' 'sound of madness' 'cry for help'
Wagner 'Ride of the Valkyries'
StarWars intro theme :D
But in the spirit of the original post, if I were to have a theme song playing in my head while I dispatch Zeds...hmmm... Powerman 5000's "Supernova", AC/DC's "Hells Bells" and on the opposite end of the spectrum Ludovico Einaudi's "Primavera" and Vanessa Mae's "The Blessed Spirits".
In Amber Clad
Counter-Strike: Condition Zero: Deleted Scenes soundtrack
and finally the I Am Legend theme track
Of course, I would climb to the top of a tower, blast it loud enough for everyone within a 10-block radius to hear, and let the music draw the zombies to my vantage post. LET THE SLAUGHTER BEGIN!!
the problem of not hearing them coming is easily solved you simply position yourself on the roof of your safe house or a building that you could control easily and put some large speakers up there and blast the music away, attracting more for you to kill :) but make sure you have to ammo to do this