Award-winning festival adds 3rd stage featuring nationally-known superpickers, soulful songwriters & more Charm City Bluegrass Festival, winner of the 2016 IBMA Momentum Award for Event of the Year and 2015 Best Festival by Baltimore Magazine, invites music lovers and foodies to gather in Druid Hill Park on Saturday, April 29 for its fifth annual all-day celebration of bluegrass with 3 stages, 14 bands…