World music can expose listeners to the mariachi horns of Mexico, the thumb pianos of Africa, or postmodern compositions for the howling emptiness of Antarctica. Sample cosmopolitan sounds with this GrouponLive deal to see Ottmar Liebert & Luna Negra at the Aeolian Hall. For $31, you get one general-admission ticket on Saturday, April 28, at 8 p.m. (up to a $63.31 value, including all fees).

Ottmar Liebert leads his long-time touring ensemble, Luna Negra, through the radio singles and beat-heavy nouveau flamenco of his 25-album catalogue, including his latest release, Dune. Liebert's flamenco guitar melodies are smooth and often melancholy in tone, suffused with elements of the upbeat rock ‘n' roll that was his first love, as listeners can hear in the song Night Exhales from his new album. When life took him from Germany to Boston to Santa Fe, he recorded a double album, Nouveau Flamenco, whose fusion of flamenco, jazz, and bossa nova gained the attention of local radio stations and a major record label that re-released his album the following year to double-platinum sales.

The Aeolian Hall's 130-year history has seen the towering High Victorian brick building change purposes almost as frequently as new acts take its stage today. Though constructed by the London East Town Council to stake its claim as a separate entity from London, it was soon drafted to serve as a fire station, public school, library, radio repair shop, and telegraphy school in quick succession. All the while, the area behind the building played host to travelling concerts, plays, and self-styled doctors hawking cure-alls. Today, a cheery buttercup-coloured auditorium with a piano signed by Chick Corea brings communities together for old-fashioned live entertainment and horse dances.