When your frenetic light show is such a huge part of your act that you reference it in the band name, you can afford to give your music away for free. So Pretty Lights does just that, offering up all their releases as free downloads at prettylightsmusic.com.

When your frenetic light show is such a huge part of your act that you reference it in the band name, you can afford to give your music away for free. So Pretty Lights does just that, offering up all their releases as free downloads at prettylightsmusic.com.

While that might reduce the music's market value, it doesn't render these sounds worthless. Rather, a quick spin through Pretty Lights' ever-expanding catalog proves them among today's foremost purveyors of sample-delic sounds.

Their show Friday with Nit Grit and roeVy will be one of the last outdoor LC shows of the season.