Record Rack

*** Deltron 3030, “Deltron 3030,” 75 Ark. The concept of this recently released sci-fi prog-rap hip-hopera is a bit thin--the year 3030, global computer conspiracies, an interplanetary rap contest. But the teaming of producer Dan the Automator, rapper-lyricist Del tha Funkee Homosapien and turntable artist Kid Koala yields imaginatively entertaining music, leavened by wit and spiced with appearances by guests including Sean Lennon and Blur’s Damon Albarn. Deltron 3030 plays the House of Blues on Tuesday.

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Albums are rated on a scale of one star (poor), two stars (fair), three stars (good) and four stars (excellent). The albums are already released unless otherwise noted.