LISBON — On a warm, moonlit fall night, the band Buraka Som Sistema took the stage at an outdoor festival here. Andro Carvalho, known as Conductor, shouted out lyrics while Blaya, the band’s high-octane frontwoman, leapt around in sparkly short shorts. “From Portugal to the world!” Kalaf Angelo, another vocalist, called out to the crowd, which ranged from pre-teenagers to retirees, all dancing to the intense beat.

Founded in 2006 by two club kids from Lisbon, the band mixes Kuduro, a strain of Angolan dance music born in the late 1980s, with electronic music and some Caribbean inflections. In a country better known for its mournful fado music — and for the general gloom induced by the euro crisis — the band reveals a side of Portugal and of Europe as a multiethnic musical melting pot. This is post-colonialism you can dance to.

“They’re the opposite of fado,” said Vitor Belanciano, a music critic at Público, a Lisbon daily.

This five-member group, which has toured worldwide, released its latest album, “Buraka,” on iTunes and on CD in September. The well-known Lisbon street artist Vhils was a co-director for the video of one of its hit tracks, “Stoopid.”

When they were growing up in Amadora, a lower-middle-class suburb of Lisbon, the band’s Portuguese founders, João Barbosa, 34, who goes by Branko, and Rui Pité, 36, who goes by DJ Riot, used to hear African beats coming out of car windows. As teenagers, they fell into Lisbon’s club scene, coming of age in the Europe of open borders and low-cost airlines that made it easy to travel to hear new sounds, and in the world of Myspace, YouTube and now SoundCloud.