ALASH are masters of Tuvan throat singing (xöömei), a remarkable technique for singing multiple pitches at the same time. What distinguishes this gifted trio from earlier generations of Tuvan throat singers is the subtle infusion of modern influences into their traditional music. One can find complex harmonies, western instruments, and contemporary song forms in Alash’s music, but its overall sound and spirit is decidedly Tuvan. Trained in traditional Tuvan music since childhood, the Alash musicians studied at Kyzyl Arts College just as Tuva was beginning to open up to the West. They have borrowed new ideas that mesh well with the sound and feel of traditional Tuvan music, but they have never sacrificed the integrity of their own heritage in an effort to make their music more hip. At One Longfellow Square. 8-10:30pm. $20 adv./$25 day of. FMI: onelongfellowsquare.com.