While other local music equipment retailers fell off or retired, Planet Woodstock’s audio-obsessed, community-oriented team has struck a chord in the hearts of musicians all over the county. They’re celebrating 15 years in business with an all-ages live rock show featuring Hudson Valley bands Kick Out the Rouge!, Ramona Lane, Moana Freaka, and Nikki Danger. Music kicks off at 3pm and is preceded by a musical yard sale at noon.