Silver cables or copper?Any opinons.

You simply cannot use the same cable for Jazz Rock and the Blues. Any serious listener who really cares about proper musical accuracy should swap all their cables when listening to disparate musical styles. If you expect a specific cable to reproduce Mumblecore and emotive indy hipster ballads as well as Norwegian Death Metal you are simply delusional. Mope Rock to Mahler? Really? INSANE...DON'T DO IT. Take a few minutes to swap out all your wires before changing musical styles or suffer the consequences...and wait for the cables to settle in for a few hours before any serious listening. Adjusting the height of the wooden cable holders (these should always be cryo treated and then slightly roasted) that keep things off the floor is also often overlooked...a few millimeters can make a difference. It's also a good idea to treat the air in the listening room to allow cables to sound best...remove all of the oxygen from the room and replace it after running it through new BMW E90 series micro filters. Also, there are few tweaks more important than Hopi Smoke Cleansing for cables.

LOL, I thought you were serious at first! I personally am getting too old to spend too much time swapping out cables as opposed to enjoying music and movies while I still can.

Wolf_garcia is on something....did no one discover that cables sound different after 6 pm? And some not? There are also huge differences in cable holders, some are made of wood with a nice painting which cost more than a stack of gold coins and sound not as good.
Personally I agree with W_g, I prefer for Jazz a cable which is sonically in the red area, with a touch of Jaguar green, but for classic music, nothing beats a cable which shows in the so important midrange a shade of grey with a nice silver glamour in the lower bass.

Syntax/Wolf_garcia, would you say that this is a psycho-acoustic experience for you or an experience where your ears hear these genre differently...

Psycho-acoustic is it.