Locked Down, the forthcoming album from storied musician and Rock and Roll Hall of Famer Dr. John, due out April 3 on CD and April 21 on vinyl, is now available to pre-order in the Nonesuch Store. The new album, which marks a significant departure from his recent efforts, was produced by The Black Keys' Dan Auerbach and will be Dr. John's first for Nonesuch Records. Nonesuch Store pre-orders include an exclusive print of Dr. John and Auerbach.

Björk was the guest on last night's episode of The Colbert Report on Comedy Central. She performed the song "Cosmogony" off her new album, Biophilia. For the performance, Björk was backed by members of an award-winning Icelandic women's choir, Alarm Will Sound percussionist Chris Thompson, and app developer Max Weisel, who will also perform on stage alongside Björk in the live shows. Watch it here, along with Björk's conversation with Colbert.

Björk, whose ten-night Biophilia residency in New York City begins this Friday, will be the guest on tonight's episode of The Colbert Report. Tune in to Comedy Central starting at 11:30 PM ET tonight to see Björk perform "Cosmogony" from Biophilia and talk with host Stephen Colbert about the multimedia project: the album, the Apps, the educational series, and the residency, which includes six shows at the New York Hall of Science in Queens and four at Roseland Ballroom in Manhattan.

Nonesuch Records wishes Philip Glass a very happy 75th birthday today. The composer celebrates with the US premiere of his Ninth Symphony by the American Composers Orchestra at Carnegie Hall. He previews the performance on WNYC's Soundcheck today at 2 PM ET. He was the subject of a feature profile on NPR's Morning Edition earlier today. "Composer Philip Glass changed the landscape of American music," says NPR. "Glass came up with a new way to make music, and with it, brought a new audience to the concert halls."

Chris Thile—whose new album with Punch Brothers, Who's Feeling Young Now?, is due out in two weeks—is playing at Boston's House of Blues tonight with his fellow Goat Rodeo Sessions players: Yo-Yo Ma, Stuart Duncan, and Edgar Meyer. Fans across the US will have a chance to catch all of the string-virtuoso magic on the big screen as the concert is broadcast live to movie theaters in all 50 states. Thile will join his fellow Punch Brothers on their US tour in February.

The Black Keys' European tour brought the band to Germany over the weekend. Saturday's show in Berlin was "positively devoured by the German crowd," reports MTV News. "Drawing heavily from their breakout Brothers album and the equally successful El Camino, the duo, aided by backing band for extra oomph, tore through 90-plus minutes of sweaty, snarling stuff, a full-bore workout for their triumphant run of U.S. arena shows, which kicks off in March." Up next are shows in Italy, Switzerland, and the Netherlands before seven in the UK.

Carnegie Hall has announced its 2012–13 season, and featured among the performers taking the esteemed hall's stages are a number of artists familiar to readers of the Nonesuch Journal, including Kronos Quartet, Richard Goode, Dawn Upshaw, and Alarm Will Sound, as well as world and New York premiere performances of works by Steve Reich, Timothy Andres, and Donnacha Dennehy. In addition, John Adams will lead a Professional Training Workshop for emerging talents through Carnegie Hall's Weill Music Institute.

Björk is set to bring her live Biophilia show to NYC for a ten-night residency starting next week, including performances at the New York Hall of Science in Queens and at Roseland in Manhattan. In addition, Björk is collaborating with the Hall of Science on a three-week-long Biophilia education series featuring interactive science and music workshops for school children in Corona and Flushing, Queens. The program is featured in the Wall Street Journal, whom Björk tells: “The whole idea is to take music education out of a bookish, academic thing and into a more physical, tactile experience."

Brad Mehldau is set to perform an intimate solo set in Washington, DC, this weekend. The Washington City Paper says: "His performances are wondrous, and this one promises to be no different." The Washington Post, reviewing the new Brad Mehldau Trio box set The Art of the Trio Recordings: 1996-2001, cites "an intuitive and highly interactive level of performance" in the set. JazzTimes says the retrospective offers "a fresh vantage point on a body of music by enabling the listener to experience it whole. The best art requires time to release all of its revelations." Jambands calls it "a solid reminder why Brad Mehldau has earned his place amongst the true masters of the jazz piano."

Punch Brothers have just returned home to the United States after a week in Europe that included five-star reviews for their shows in London and Glasgow. As Punch Brothers prepare to launch its US tour in Baton Rouge with Loudon Wainwright III this Friday, they have just added another string of East Coast dates in April, including stops in New York City, Philadelphia, DC, Atlanta, Nashville, and more. For a taste of their forthcoming album, Who's Feeling Young Now?, check out the new preview video with the track "Clara" here.

Carolina Chocolate Drops were featured on CNN Newsroom, discussing their music and its roots with anchor Brooke Baldwin. Watch it here. The band performed at Celtic Connections in Glasgow with support from Punch Brothers. The bands "played with the kind of hard-won technique that leaves you high on life," raves The Scotsman in a five-star review. The Herald Scotland calls the Chocolate Drops "riotously good fun" and "a real treat"; they "set the house alight." The band launches its US tour on Thursday. Chocolate Drops and Kronos Quartet can be heard on Chimes of Freedom, a new album of songs of Bob Dylan benefiting Amnesty International.