If you liked Madlib’s Shades of Blue and recent releases from Variable Unit, you’ll probably be feeling DJ Drez’s latest: while The Capture of Sound is no Bitches Brew, it beats the hell out of your average lounge-music-with-a-4/4-beat. Apart from Drez’s smoky instrumentals, the album’s strength is that it highlights West Coast underground standard-bearers. Aceyalone pounds it on “Last Show,” Medusa’s “Funk Infected” will convert the uninitiated and Dr. Oop’s flows are damn sexy on “The Prescription.”