Caught on the Net: A killer track to Skream about

La Roux's rise was helped by a remix of "In for the Kill" from the dubstep producer Skream. Now the electro duo are returning to the remix fray, via Major Lazer's electro-dancehall stylings. Apparently put together while Diplo and Switch – the producers behind Major Lazer – were in Jamaica, 'Lazerproof' is a 14-track mixtape with reworkings of La Roux material, alongside new work. Drake and Gucci Mane have added vocals. Diplo is not new to such efforts, having put together, among others, mixtapes with Santogold in 2008 and MIA's era-defining 'Piracy Funds Terrorism Volume 1' from 2004. The latest is a free download from his label MadDecent at Maddecent.com.

A New York state of mind

Last year's Jay Z/Alicia Keys duet "Empire State of Mind" is probably the most popular recent song about New York. Another memorable cut was LCD Soundsystem's 2007 love/hate letter "New York, I Love You but You're Bringing Me Down".

At a recent New York gig, the band performed the song, and then segued into a brief rendition of the Jay Z/Keys anthem, with James Murphy and the keyboard player Nancy Whang sharing vocal duties – thankfully they stuck to singing the chorus, avoiding any stabs at rapping. See the video at ind.pn/9Ck8TR. The recording comes from NickyDigital.com, a site documenting night life in New York. On their YouTube channel they post videos from concerts and events around the city, ind.pn/bWGOw6.

A shiny new cover

About a week ago Ramona Gonzalez, aka the lo-fi disco performer Nite Jewel, tweeted (@nitejewel) a link to a new song. It's a cover of "Tonight" by a fairly obscure 1980s US disco/soul artist called Prophet. The track can be downloaded from her website, Nitejewel.com, in exchange for an email address. It's worth it – the song is a sleek slice of arthouse disco.

Suckers for a good soundtrack

Vampire-based soundtracks are the go-to destination for musicians lately. The Twilight franchise has continually attracted big names: the new Twilight film has everyone from Metallica and Muse to Vampire Weekend and Metric.

Beck collaborated with Bat for Lashes for his contribution. He also appears on the forthcoming soundtrack for the third season of racy vampire TV series True Blood. The song, called "Bad Blood" finds Beck in sprightly mood with a stomping slab of fuzzy blues-rock.

The whole thing, which also includes songs from Lucinda Williams, M Ward, Elvis Costello and Robbie Roberston, is streaming at ind.pn/d6bVyG.