All right, I can see that you are very interested in the type of sunglasses. Personally, those sunglasses are quite suitable for him because he is a popular rock singer. Anyway, those sunglasses are called sports sunglasses, and you could see an awful lot of them at Amazon online store, where the options are various, and the prices are quite affordable. Hope you find what you want over there.
Look at the photos of Joe Satriani! There are too many photoes of his that shows he likes wearing sunglasses. It makes him so cool wearing black sunglasses and holding a guitar in arms. But you see, there are too many different styles of sunglasses he once wore. I don't know which pair you are referring to. You can check some super markets or stores, yet it might exhaust you. Why don't you try some on-line eye wear shops? Many on-line eye wear shops pop up in a sudden as the e-business booming. Some famous brands set up their own on-line boutique too. It is easy and convenient to shop on line. In summer, it is too hot with strong sun rays. You won't want to walk out for hours to search for a pair of sunglasses. Searching on internet, you will surely be surprised. They can provide so many kinds of sunglasses with so adorable price! Can you resist it? I loving shopping on line indeed, because the price I got was always far nicer than the price in department stores. By the way, if you buy the sunglasses to protect your eyes instead of being cool, brown and grey colors are more popular because they could prevent nearly all UV rays. Good luck to you.
Yes, I have seen the black sunglasses that joe satriani wears. They look so fashionable when wearing them. The sunglasses are so cool and fashionable. They must be the designer types with high price. If you want to buy the similar one, you could go to the online stores to have a search. You will find the similar type there.