MUSIC AL FRESCO: Trombonist Jimmy Bosch opens the Blue Curtain series of concerts at Pettoranello Gardens on July 8.

Blue Curtain, a Princeton summer tradition, returns to Pettoranello Gardens Amphitheater with three free concerts in July. These are free, family-friendly events presenting renowned musicians. Concerts begin at 8 p.m. The amphitheater is located at Route 206 and Mountain Avenue.

First, on July 8, is Jimmy Bosch Salsa Masters. This concert is part of the Jimmy Bosch Tribute World Tour, celebrating 50 years in salsa and Latin jazz. Also known as “El Trombon Criollo,” Bosch is a jazz and salsa music trombonist, composer and bandleader of Puerto Rican descent, and was born in New Jersey. Among the artists with whom he has played are Rubén Blades, Mark Anthony, Eddie Palmieri, Celia Cruz, and Ray Baretto.

On July 15, flamenco guitar virtuoso Juan Carmona and his band perform music that might be found in the bars of Andalusian Spain. Considered one of the greatest living flamenco guitarists, Carmona is known to be deeply connected to his Andalusian roots while also being an innovator. He has been nominated five times for Latin Grammy Best Flamenco Album of the Year.

The series concludes on July 22 with jazz bassist Rufus Reid & Expedition. In addition to leading his own groups — duos, trios, quartets, and quintets — Reid has accompanied numerous jazz artists such as Dexter Gordon, Stan Getz, and Kenny Barron. For this concert, Reid will be joined by his quartet, featuring Roxy Coss on saxophone, Kenneth Salters on drums, Roberta Piket on piano, and Freddie Hendrix on trumpet.

Blue Curtain, co-sponsored by the Princeton Recreation Department, is a nonprofit dedicated to presenting the highest quality of culturally diverse music and dance to the audiences in the Princeton area. Concertgoers are encouraged to bring lawn chairs and blankets. Email info@bluecurtain.org for more information.

In case of rain or extreme heat, the shows will move to Princeton High School Performing Arts Center at Franklin Avenue and Walnut Lane.