Kendrick Lamar’s latest song is his magnum opus, at least so far. (Photo by Lucas Alvarado-Farrar/ Far Fetched Future)

Blur: “Under the Westway” (live)
Prepare to freak out: This new ballad, performed by Damon Albarn and Graham Coxon at a British benefit show over the weekend, might offer a hint of what Blur’s long-promised, as-yet-unrecorded new disc will sound like.

Co La: “Egyptian Peaches” (Avey Tare’s Cold Oranges Mix)
The Baltimore-based sound deconstructor (born Matthew Papich and best known for his work in Ecstatic Sunshine) turns his phantasmagorical, new-ish track over to Animal Collective’s Tare, who strips it for parts.

Kendrick Lamar featuring Gunplay: “Cartoon & Cereal”
This seven-minute track is Lamar’s magnum opus, at least so far: a tongue-twisty, improbably arty tour de force delivered with assistance from Maybach up-and-comer Gunplay.

Lost in the Trees: “Red”
Intended as a tribute to the late mother of Ari Picker, frontman of this Chapel Hill, N.C.-based folk orchestra, this is a stunner — great, gorgeous and sad.

Chris Cornell: “I Will Always Love You” (live)
In a week devoted to posthumous mash-ups and tentative YouTube covers, who would have thought that the most moving Whitney Houston tribute would come from the Soundgarden leader, who hits every note (both musical and emotional) just right?