If you want to avoid the use of coupling capacitors and such, you can also choose the DG470 which can operate well from +/- power supplies. It has a modest ON resistance too.
There is a point to DC coupling audio circuits at 0 volts, especially switches. Biasing everything at ground and DC coupling means that there are no coupling capacitors charging and discharging when you turn things on and off, so you avoid popping sounds and other transients.
Oh, I've just noticed that the 405x series also manages bipolar supplies with ease. I'd still recommend the DG470 for its lower distortion and R(on).