If you’re a violinist, tone comes from wood and your fingers, and that’s it. If you play electric guitar, there are several more stages in the signal chain that run from your fingers to the listener’s ear. Pedals are so important that many players would rather use a house amp with their own pedals than bring their own amp along and leave the stompboxes at home. But there are so many to choose from, and you can’t buy the whole store. By category, here are some of the best choices in guitar pedals, with a budget option and another choice if cost is no object.