For almost 20 years, Schola Cantorum Coralina has been the one of the foremost choruses in Cuba. The 20-member ensemble is on its first United States tour, performing here under the auspices of VocalEssence. Their program, "An Evening in Havana," naturally focused on contemporary Cuban music, but also featured music from Argentina, Brazil, the Philippines, Spain, and beyond. The group performed two concerts last weekend at House of Hope Presbyterian Church in St. Paul.

The chorus rehearses for three hours a night, four nights a week, under its passionate conductor, Alina Orraca. That commitment shows in the performances. From the resonant, rumbling basses to the delicate, crystalline sopranos, even to the top of their range, they blended into a robust, sensuous sound.

Coralina receives financial support from the government, paying each member a part-time salary. As part of their job, members lead three children's choruses, for ages 3 to 15, to instill the love of music.

The program opened with a set of religious pieces, sung in Latin, and rooted in classical traditions. From Yaniel Fernandez came an "Ave Maria" that blended a contemporary melody with medieval-sounding harmonies into a luscious whole.

Argentinian Alberto Ginastera's "O Vos Omnes" exemplified modern polyphony, while Filipino Ryan Cayabyab's Sanctus drew from a minimalist aesthetic.

Demonstrating its musical diversity, Coralina performed Morten Lauridsen's "O Magnum Mysterium," rooted in American hymnody, sung perfectly idiomatically. That was also true of a 17th-century "Salve Regina" from Spain and a medieval chant.

The rest of the program was contemporary secular music, where the line between classical and pop was especially fine. This was either classical music based on popular tunes or popular music embodying classical techniques.

For these selections, Coralina performed with a movement-based style. In songs based on the mambo, samba and tango, they employed choreography that had chorus members breaking out in dance even as they masterfully sang complex polyrhythms and dense harmonies.

There were lush arrangements of '30s pop songs, straightforward Latin ballads and radio-ready melodies sung with wit and a sense of fun. There were interesting techniques, like Guido Lopez Gavilan's "Guayaboso (Liar)" that used the voices as instruments and Fernandez's "Afrorritmos" that celebrated the Afro-Cuban musical culture.

Every element of the evening was executed flawlessly, making for one of the most exciting concert experiences of the year.

William Randall Beard writes about music.