By THÉRÈSE MARGOLIS

Three of Mexico’s most gifted classical singers — tenors Ramón Vargas and Fernando de la Mora and soprano Leticia de Altamirano — are slated to perform a one-night-only concert in support of the Ramón Vargas Foundation on Friday, April 21, at Mexico City’s Roberto Cantoral Cultural Center.

The performance, titled “Tiempo de Armonizar” (“Time to Harmonize”), will include a selection of operatic arias and classic Mexican compositions.

Founded in 2000, the Ramón Vargas Foundation supports children with cerebral palsy and other developmental diseases in rural and underdeveloped areas of Mexico, including in Mexico City, Veracruz, Puebla, Chiapas, Sinaloa, Oaxaca, Querétaro, Jalisco, Yucatán, the State of Mexico, Michoacán and San Luis Potosí.

The Tiempo de Armonizar concert will be held at the Centro Cultural Roberto Cantoral, located at Puente de Xoco Puerta A in Mexico City’s Colonia Xoco, on Friday, April 21, at 9 p.m. Tickets run from 600 to 2,000 pesos per person, depending on the seat, and can be purchased through Ticketmaster.