Denver’s reputation as a live-music mecca is rooted as much in our concert venues as it is in the artists they attract. That’s always been true to some extent, but those venues needn’t be Red Rocks Amphitheatre in import or size. Lovingly preserved theaters, state-of-the-art venues rising from parking lots, and scrappy indie clubs are all proving there’s more on the must-visit list these days. Countless worthy ones were left off this list for the sake of space — shiny new amphitheaters, sweaty clubs and gorgeous music halls — but trust us when we say we love them, too.