The band members travel the world looking for documents of Sephardic songs, and also interview community members who may remember particular musical arrangements.

The group continues to perform their signature arrangements of traditional Sephardic songs.

The concert, by the 50-member Mosa Pijade mixed choir, will offer traditional Hebrew, Yiddish, Ladino and Sephardic songs as well as contemporary Israeli compositions.

Two Sephardic songs from 20th-century Yugoslavia were also included (though I doubt if the original words of one referred, as the translation has it, to "the newborn Lord").

The Hespèrion program includes a group of Sephardic songs, works by Spanish and Italian late-Renaissance and early-Baroque composers and music by Marais.

But the biggest treat was Mr. Sierra's work, a collection of seven Sephardic songs, some using traditional melodies, some with melodies supplied by Mr. Sierra.

The duo, consisting of the soprano Nancy Knowles and the baritone Frank Wallace, will present medieval, Renaissance and Sephardic songs.

Klezmer, tango, fado, Sephardic song: Mr. Golijov speaks of sliding among genres the way other composers modulate to different keys, yet his works move brilliantly beyond collage to grab the ears with palpable force.

Lopes Cardozo, Abraham: Sephardic songs of praise according to the Spanish-Portuguese tradition as sung in the synagogue and home.

Coplas Sefardies - collection of sephardic songs composed by Hemsi from among 230 poems and songs collected in the former Ottoman Empire between 1923 and 1937.