Buy, sell, trade, and repair guitar shop Galactic Guitar Exchange opened this month at 1133 Light St. in Federal Hill. Galactic Guitar Exchange relocated from Joppatowne and fills a vacant space that was previously Minuteman Press.Owner Ryan Ellis started Galactic Guitar Exchange three years ago at the Joppa Grand Market. Ellis has a background in jazz music and plays standup bass and guitar.Read more at SouthBmore.