Blue Curtain at Princeton’s Pettoranello Gardens announces two free concerts on Saturday, July 11 and Saturday, July 18. Pettoranello Gardens is located at the corner of Route 206 and Mountain Avenue in Princeton.

Soulful singer Aurelio of Honduras will perform a concert of guitar and percussion on July 11 at 7 p.m. He’s been casting the warm glow of the Caribbean upon audiences since becoming the country’s musical ambassador. Aurelio takes pride is preserving the language and unique sounds of the small Honduran fishing village where he was born.

Aurelio will be joined by instrumental Brazilian music group Regional de NY. The ensemble plays traditional arrangements of Brazil’s oldest popular music. Regional de NY’s band members include flutist Hadar Noiberg; Cesar Garabini on 7-string guitar; Vitor Goncalves on accordion; Kahil Nayton on cavaquinho; and Ranjan Ramchandani on pandeiro.

African American gospel group The Campbell Brothers will perform on July 18 at 7 p.m. The Campbell Brothers present a variety of material deriving from a Pentecostal repertoire. The growling, wailing, shouting, and singing will be sure to move audiences.

The Campbell Brothers will be followed by guitarist Michael Gregory Jackson. Jackson paved the way for the Black Rock movement of the 1980s, recorded for Arista and Island, and headed the power trio Signal. He has recorded with the likes of Carlos Santana and Patti LaBelle.

Concertgoers are encouraged to arrive early to enjoy the best outdoor seating. The concert series is presented by Blue Curtain and the Princeton Recreation Department.