2016 Music Festivals December 16, 2015 | Norm Here’s the 2016 schedule of music festivals at the Nevada County Fairgrounds! These world-class music festivals will make for an exciting and entertaining year! Mark your calendar. Categories: Announcements.Tags: California WorldFest, Father's Day Bluegrass Festival, Grass Valley, KVMR Celtic Festival, music festivals, Music in the Mountains, Nevada County Fairgrounds, Strawberry Music Festival, and SummerFest.