Metallica guitarist Kirk Hammett has revealed the first taste of his debut solo EP, Portals, which arrives April 23 via Blackened Recordings. The instrumental \u201cHigh Plains Drifter\u201d was inspired by the music from the 1973 film of the same name and sports contributions from Queens Of The Stone Age\u2019s Jon Theodore, longtime Metallica collaborator Edwin Outwater and members of the Los Angeles Philharmonic Orchestra. https:\/\/www.youtube.com\/watch?vHBdCdd5Hiqk&listRDAMVMHBdCdd5Hiqk&ab_channelKirkHammett-Topic \u201cThe music for 'High Plains Drifter' initially came from a flamenco piece I had written,\u201d Hammett says. \u201cIt was a two-and-a-half-minute piece, and I really liked it, but it was one of those riffs that would be hard to integrate into Metallica. I knew I wanted to do something with it, even though it came out spontaneously. I had been sitting outside messing around with a flamenco acoustic guitar I\u2019d just bought, and it flowed out in the moment.\u201d Portals\u00a0was recorded in Los Angeles, Paris and Oahu and also includes the songs \u201cMaiden and the Monster,\u201d \u201cThe Jinn\u201d and \u201cThe Incantation.\u201d It will be available digitally, on CD and as a blue vinyl Record Store Day exclusive. Metallica will be on tour throughout the spring and summer, beginning April 27 in Santiago. The group will perform at a host of major festivals in the coming weeks, including Boston Calling in Boston over Memorial Day weekend and Lollapalooza in Chicago in late July.