It was 25 years ago this fall that Caetano Veloso's self-titled album was released in the US on Nonesuch Records. That acoustic guitar set launched a relationship that has since brought more than a dozen unforgettable albums, most recently last year's zii e zie, of which the Times of London declared: "The Brazilian master remains in a league of his own." Now, Veloso's Nonesuch catalog is available digitally, in the Nonesuch Store and on iTunes and Amazon. Veloso is Guest Director of the 2011 Telluride Film Festival, which will be held over Labor Day weekend.

Music and culture website Pitchfork.com launched 15 years ago this summer, in 1996, and in honor of this anniversary, the site is taking a look at artists "who've left a mark on the musical landscape over the past 15 years"; Björk was chosen for the first feature in the series. Writer Brandon Stosuy talks to the artist about her career and her work since 1996 through her upcoming album, Biophilia. As the release of Biophilia draws closer, Björk's "Crystalline Series"—four 12" vinyl imports from the UK featuring variations on music from Biophilia—have been made available. The series includes remixes from Grammy-winning engineer Serban Ghenea, British electronic artist Matthew Herbert (who previously collaborated with Björk on her album Vespertine), and musician Omar Souleyman.

Björk continues to roll out Biophilia with today's release of the "Virus" single and as a special feature on the Biophilia App, both available exclusively through iTunes. The app feature is part musical instrument, part sonic artwork, and part scientifically informed educational animation. SPIN calls "Virus" the album's "most intimate song yet," adding that "never has a song about human ailment sounded so seductive or beautiful." Björk discusses the project on the BBC World Service's The Strand. The two custom-made editions of the Biophilia album must be ordered by the end of the day this Thursday, August 11.

"Crystalline," the first single off Björk's multimedia project Biophilia, is featured on NPR's All Songs Considered. "God bless Björk," says producer Robin Hilton. "We need artists like her ... Something comes along like the iPad or the iPhone, and they just see things differently. They take us in new, completely unexpected directions. They embrace technology and turn it into a new art form. I think that's just amazing." Björk discussed the project with BBC Radio 4's Front Row. Wired features an interview with Scott Snibbe, the leader of the team behind the Biophilia App, and Spinner spoke with some of the inventors behind the unique musical instruments commissioned for the project.

This past weekend, the Newport Folk Festival offered the sold-out crowd two beautiful summer days of music from performers including the Carolina Chocolate Drops, Emmylou Harris, Wanda Jackson, and Chris Thile & Michael Daves. You can now listen to all of those sets online at NPR Music, from the ever "vital and contemporary" Harris to the "blazingly intense music" of Thile & Daves. The Boston Globe says that all the music proved "compelling and indebted to what preceded it."

Chris Thile and Michael Daves will be the guests on WNYC's Soundcheck today at 2 PM ET, performing songs from their debut duo album, Sleep With One Eye Open, before a live audience at the Greene Space in downtown Manhattan. Also performing are the Del McCoury Band and the Preservation Hall Jazz Band. The show is sold-out and will be webcast live. The New Yorker, in a preview of their show at The Bell House in Brooklyn tonight, says: "Expect the pair to deliver a high-spirited bluegrass-infused performance full of inspired harmonies."

Björk continues to unveil Biophilia, her most interdisciplinary project to date, with today’s release of the Biophilia App for iPad, iPhone and iPod touch and first two album singles "Cosmogony" and "Crystalline" on the iTunes Store. The full Biophilia album will be released on September 27, 2011, through One Little Indian / Nonesuch Records; the five physical versions are available for pre-order now in the Nonesuch Store, including the custom-made Biophilia Manual and Ultimate Edition.

Jessica Lea Mayfield is featured on SPIN magazine's tribute to the 20th anniversary of Nirvana's Nevermind. She performs the album track "Lounge Act" on Newermind, on which SPIN asked some of its "favorite contemporary artists to cover the influential album's 13 songs, in their original order." Newermind is available as a free download till July 25 on SPIN's Facebook page. Mayfield concludes her tour with the Avett Brothers in Oakland tonight, then continues her own headline tour. Tune in to hear her perform on KFOG this afternoon.

Randy Newman's recent appearance on Words and Music from Studio A from New York's NPR member station WFUV is now available to stream on NPR Music at NPR.org. Newman performs songs from his latest Nonesuch release, Songbook Vol. 2, and talks with host Claudia Marshall about the project. "He is, simply, one of America's greatest songwriters," Marshall exclaims, "and the hour or so we spent together is among the most enjoyable radio interviews I've ever done." Newman launches his two-week tour of Australia this Friday.

Emmylou Harris brings her North American summer tour to NYC for a special performance, in which she joins the Levon Helm Band for a concert in Central Park to benefit SummerStage. She performs on Late Night with Jimmy Fallon Tuesday night. "The Road," the opening track on her new album, Hard Bargain, is the Free MP3 of the Day today at MP3.com. The New York Times, recommending tonight's show, calls Harris "the reigning queen of smart, fluent Americana."

John Adams is "this summer's hottest composer," says Q2, with recent stagings of two of his operas and, this week, a Lincoln Center Festival series in which the Cleveland Orchestra pairs his orchestral works with Bruckner symphonies. Watch Adams and Cleveland Music Director Franz Welser-Möst discuss the creative process in a video here. Tune in to Q2's The New Canon for a live chat about Adams with soprano Jessica Rivera (A Flowering Tree) and flautist Eric Lamb (Son of Chamber Symphony).

Christina Courtin recently performed at (Le) Poisson Rouge in NYC, with longtime and frequent collaborators Brooklyn Rider opening. The show was broadcast on Q2's Cued Up. "While taking cues from their classical training," says Q2, "these artists have broken down the conventional walls of a music conservatory and are comfortable playing anything from Philip Glass's string quartets to playing backup on Nashville-inspired tunes." Listen to Courtin's set here.