Similarly, if you tour or play live a lot, you can consider investing in a nice amp head, so you don’t have to lug a giant amp with you everywhere. If you want to buy a great amp to play classic rock, look for something lightly used and durable. Here are some of my favorite choices for making classic rock music: Let’s try a different strategy. I said you should tune the B string a major third above G, but you could just as easily tune the B string a fifth plus an octave above the low E string. So let’s go ahead and multiply 1 Hz by 3/2, and then double it, which gives you a B at 3 Hz. Now the B string sounds terrific against the low E at 1 Hz and the high E at 4 Hz.