The challenge in talking about Jamie XX’s brilliant new album “In Waves” is trying to describe what “kind” of music it is. As the main songwriter and producer in the British trio the XX, he was the driving force behind one of the great hopes of alternative music in the late ‘00s.

After an extended roll-out throughout the summer, Jamie xx ’s In Waves has arrived in its full euphoric glory. The UK producer and DJ’s second full-length LP is a 12-track journey in heart-felt house and euro-trance delight, supported by a diverse roster of collaborators.

The British producer’s first solo album in nine years is an uneven collection of club music, wasting many of its guests but featuring propulsive beats and a dreamy psychedelic mood.

Jamie xx ’s music inhabits a curious space in the British dance scene.

Jamie xx, Alasdair McLellan. With so much good music being released all the time, it can be hard to determine what to listen to first. Every week, Pitchfork offers a run-

Jamie xx is not an X-rated musician. The Londoner, real name Jamie Smith, takes his stage moniker from his band, The xx. Their music is based around murmured vocals and muted sounds, an atmospheric register pitched somewhere between reserve,