Brennen Bryarly has built a bit of an electronic-dance music empire over the past several years. Bryarly releases house music as Option4 and has organized shows locally and nationally that offer an array of dance-oriented artists. And every year since 2014, he's put his wide net of contacts and great musical taste to use at Cloak & Dagger. The now-established EDM festival at City Hall and Vinyl brings together commercial and underground acts, and Bryarly invites both local and national performers. Nowhere in Denver is the EDM scene more diverse, or more alive, than at this festival.