This intriguing Argentine band combines reggae with progressive rock, jazz, and Latin American rhythms, and boasts a carefully staged live show and hermetic lyrics. Formed in Santa Fe in 1997 by siblings Gustavo and Ricardo Cortés, the band was mostly inspired by Jamaican rocksteady but slowly incorporated a host of other influences and moved closer to alternative rock. By the mid-2000s, Sig Ragga was becoming a regular presence at rock and reggae festivals, and in 2009 was finally able to release its eponymous debut album. The band continued to improve on Aquelarre (2013) and La Promesa de Thamar (2016) -- each of his first three releases earned several Latin Grammy nominations in the alternative music categories. ~ Mariano Prunes