I guess a program could reproduce any, but if its below 20hz, or above 20,000hz, the playablity would be very limited.
You'd either get no sound, or a sound completly different to what your meant to get.
My speakers only support 40hz or higher. Forcing a 20hz signal into them just causes a high pitched squeak and a rumble of the subwoofer (not a rumble producing a certain frequency though)