I want to spend a few weeks introducing some of my favorite Polish bands. I lived in Poland from the middle of 2002 until the middle of 2004, and I spent a lot of time trying to find good rock bands there. It was a struggle. Polish radio consisted mainly of boring Anglo-American pop and R & B and mainstream American hip hop, with a smattering of weak Polish variations on the same kind of music. (You can listen for yourself .) After years of struggle, though (during which I learned almost to like…