Having lost no energy along the way, the gypsy punks are back with their sixth full-length studio album. On Pura Vida Conspiracy one could even say that Gogol Bordello have gathered momentum and the result is more rip-roaring than ever. Initial track 'We Rise Again' sets the tone for the whole record, one of progress marching towards a better future: "For me music is a way to explore human potential," says singer Eugene Hütz. "And that's my main interest in life - human potential. Everyone knows there's something inside of us that we're not using. How do we get it? How do we reach it? Every single person knows that there's something and nobody knows what it is. So at one point I said to myself, I'm gonna get down and get it."

Unlike previous releases, the atmosphere presiding over Pura Vida Conspiracy is overwhelmingly American in feel; in equal (and frankly odd) measures folky and punk rock. They have retained their trademark locomotive rhythms and racing tempo. You cannot help but hear the sense of urgency in the music, an imperative command to look beyond, and 'Dig Deep Enough', as the second track demands.

Further into Pura Vida Conspiracy the music takes a different turn. 'Name Your Ship' has a distinctly Irish sound, reminiscent of The Pogues, most probably due to the song's instrumentation. Just when I was beginning to fear that Gogol Bordello had perhaps forgotten their Eastern European roots, they claw back their original USP with the central track 'Rainbow'. In a band composed of eight musicians, each with varied immigrant backgrounds, the resulting genuine musical melting pot is unavoidable. No wonder then, that this record has such an international focus, epitomised by the lyric: "Borders are scars on face of the planet." Unfortunately, often the powerful backing drowns out the vocals thus rendering the lyrics indecipherable - a real shame considering their important message.

A pleasant diversion and change of pace is provided by 'I Just Realized', a seductive track sustained by Spanish guitar along (predictably for Gogol) with a spicy splash of accordion. We are then directly dropped back onto the Gogol Bordello treadmill, set on a speed one notch too fast, just to keep us on our toes. The most effective sections of Pura Vida Conspiracy are those where the dynamics change and we experience the impressive variety of sound which the band is famous for.

The beginning of the album is somewhat samey: the first few tracks bring no great surprises. Luckily, Gogol Bordello apply their usual panache to the rest of the record, and whilst there is no real innovative development of the band's style, they have maintained what makes them great: namely, their ability to combine an array of diverse approaches into one track. Pura Vida Conspiracy finishes off with that classic trick: a hidden track to be found only if you leave 'We Shall Sail', the final song of the record, playing.

All in all, this album ventures away from Gogol Bordello's previous sound, straying into territory that is more classic rock or in some cases folk. For fans of their music, this new departure may not be entirely to your taste. It is however, markedly still the work of Gogol Bordello. This sixth record may divide opinion, and throw into question which direction the band is going in next. The fact that they have had to try a more predictable route in order to evolve could be an indicator that the band has finally exhausted its gypsy-punk niche. Hopefully not, but only time will tell.