Ferrite install on appliances AC cable

Is there anybody experience the installation of "Ferrite", clip around appliances AC cable, like fridge or computer, as these appliances are near (or in the same room) the listening room.  According to your experience, is the Ferrite influence the listening of the sound of music ?
I've tried ferrite "circles" around appliances, including the refrigerator. Didn't have any effect on the audio system. However, that was years ago and the system is way more revealing now. I still have the ferrite thingies ... maybe I'll try them again. 

Ferrites are best for high frequency noise, including radio stations and other EMI/RFI.
Their best use is if you have wall warts, like for your network, or Class D amps. They are good on fluorescent lamps, but man, they can put out so much noise that it's only a slight improvement there.
Do not use on your system as they are bad for the dynamics and sound.
ebm5, Thats what someone told me, only install them on other than our music equipement 
I have ferrite clamps on everything not audio. I have an assortment of press closed capture type and plain long tubes 1" long abut 1/2 " outer diameter.. I can use the tubes on any zip cord. I fold the zip up into the tube and out, bending it over to fit around the other end between the entering and exiting wire. pull tight, wrap with Teflon plumber's tape. Two on each cord, one at each end. Lamps, air cleaners. refrigerator.  
Just to mention even $3000  audiophile powercords from Cardas have a ferrite device included in the design..
Until I put a Ferrite core on my antenna lead to my tuner, my tuner was unlistenable with my kitchen lights on. My kitchen lights are all LEDs and must be putting out a lot of junk. 
elizabeth, It's a shame that I can not see a photo to capture your idea.
Cardas Beyond power cord with large ferrite on cable       http://www.cardas.com/clear_beyond_power_xl.php  Clear beyond power cord same thing 
and finally the Clear power cord  
If you want to get technical about it, a bunch of very small ferrite beads, teeny tiny ferrites, located around the room, primarily along the 90 degree angles where walls meet walls and where walls meet the ceiling, every coupla feet, does wonders for the sound. Been there, done that. Thimk outside the box.