The Barbican continues its celebration of Nonesuch at 50—Explorations: The Sound of Nonesuch Records—in London this weekend with concerts from Jeremy Denk and Emmylou Harris. This follows last week’s marathon Explorations Weekend of five curated events, which earns four stars from the Telegraph (“riveting”) and the Guardian, whose Robin Denselow calls Sunday’s multi-artist concert “a suitably brave reminder that [Nonesuch] is one of the world's leading folk and roots labels.”

Pianist Jeremy Denk offers a rare evening of the Ligeti études—as heard on his 2012 Nonesuch recording, Ligeti/Beethoven—and the Goldberg Variations, both performed in their entirety at LSO St Luke’s on Saturday. Denk gave a preview of the concerts on BBC Radio 3’s In Tune earlier this week, performing Ligeti and Bach and talking with host Sean Rafferty about the pieces; you can hear it again online at bbc.co.uk. Before Saturday’s concert, Denk introduces a screening of the DVD video liner notes that accompany his recent release of the Goldbergs on Nonesuch; following the concert, he remains on stage for a talk with author Jessica Duchen.

Emmylou Harris brings her international Wrecking Ball tour with Daniel Lanois, guitarist Jim Wilson, and drummer Steven Nistor, to the Barbican Hall for two sold-out performances on Sunday and Monday. The show celebrates the reissue of Harris’s Lanois-produced album on Nonesuch last month. “Even with the luxury of 19 years to ponder, absorb and unravel its allure,” writes American Songwriter, “Wrecking Ball still sounds groundbreaking.” Like Denk’s latest release, Harris’ three-disc reissue set also comes with a DVD video: the 45-minute documentary Building the Wrecking Ball. Harris offers a set at the Brighton Festival in the English seaside town’s Dome Concert Hall tonight, and the European leg of the world tour comes to a close at Colston Hall in Bristol on Tuesday.

The Barbican’s Nonesuch celebration concludes with a sold-out performance by Caetano Veloso on May 27, and a duo set from Toumani Diabaté and his son Sidiki on May 30. And the label’s anniversary festivities don’t end there: the Brooklyn Academy of Music (BAM) presents Nonesuch Records at BAM: Celebrating a Label Without Labels, a wide-ranging series of concerts, September 9–28, in New York City. Tickets are on sale now for Friends of BAM at bam.org/nonesuch; general on-sale begins this Wednesday.

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John Adams’s oratorio El Niño—released on Nonesuch Records in 2001—receives a new staged production at the Memminger Auditorium in Charleston, South Carolina, tonight and on Sunday, as part of the 2014 Spoleto Festival USA. Also receiving a visual component at the festival is Steve Reich’s Drumming, set for a dance performance by Hubbard Street Dance Chicago in the College of Charleston’s TD Arena tonight and on Saturday. On June 3, the Spoleto Festival USA Orchestra performs Beethoven’s Symphony No. 7 alongside the US premieres of two contemporary works that pay homage to Beethoven’s music: Michael Gordon’s Rewriting Beethoven’s Seventh Symphony and Louis Andriessen’s The Nine Symphonies of Beethoven. Nonesuch Records releases Andriessen’s film opera, La Commedia, on June 10, as a set with two CDs and a DVD.

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Bombino performs two shows in France this weekend: at the Salle Claude Nougaro in Issoire tonight and LE CAP in Aulnay Sous Bois on Saturday. The Tuareg guitarist, who released his Nonesuch debut album, Nomad, last year, kicks off a string of European festival dates at the Ruhr International Das Fest der Kulturen in Bochum, Germany, on Sunday. He goes on to play festivals in France, Switzerland, Slovenia, Italy, the Netherlands, and Croatia, through late June.

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Carolina Chocolate Drops head to DelFest at the Allegany Couny Fairgrounds in Cumberland, Maryland, to perform on the Grandstand Stage late Saturday afternoon.

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Shawn Colvin and fellow singer-songwriter Steve Earle continue their “Songs and Stories, Together Onstage” duo tour in California this weekend: at The Center for the Arts’ Main Stage Theater in Grass Valley tonight and The Grove in Anaheim on Saturday. They have a two-night run at the Musical Instrument Museum Music Theater in Phoenix on Sunday and Monday, followed by two final tour stops in Tucson and Chicago in early June.

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Donnacha Dennehy joins the Fort Worth Symphony Orchestra (FWSO) as composer-in-residence for a three-night run of his piece The Vandal (2000) at Bass Performance Hall in Fort Worth, Texas, tonight, Saturday, and Sunday. The program, led by music director Miguel Harth-Bedoya, also includes two Trumpet Concertos by Haydn and Arutiunian, as well as Berlioz’s Symphonie Fantastique. These concerts mark the end of FWSO’s 2013–14 season, which also included performances of Dennehy’s Crane and That the Night Come (the latter featured on his 2011 Nonesuch debut album, Grá agus Bás).

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Natalie Merchant hits the radio waves on both sides of the Atlantic this weekend. She is the guest on today's edition of NPR's World Cafe, from XPN in Philadelphia, performing songs from her new, self-titled album and talking with host David Dye. On Sunday night, she can be heard in session on BBC Radio 2's Bob Harris program. Fans around the world can tune in to both shows online.

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Pat Metheny Unity Group—woodwind player Chris Potter, drummer Antonio Sanchez, bassist Ben Williams, and multi-instrumentalist Giulio Carmassi—round out the German leg of their world tour at Oberschwabenhalle in Ravensburg tonight and the Philharmonie in Munich on Saturday. The tour, in support of the recently released album Kin (←→), continues at Kongresshaus Zurich in Switzerland on Sunday.

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Conor Oberst, whose Nonesuch debut album, Upside Down Mountain, was released on Monday, performs two nights at the 9:30 Club in Washington, DC, tonight and on Saturday (sold out), backed by the band Dawes, which is joining him as special guest throughout the tour. Oberst rounds out the Northeastern leg of his US tour with a sold-out show at the Carnegie Library Music Hall of Homestead in Munhall, Pennsylvania, on Sunday, and heads next to the Midwest for performances in Chicago, Milwaukee, and Minneapolis in the week ahead.

Oberst celebrated the release of his new album on NBC’s The Tonight Show Starring Jimmy Fallon on Monday and is set to perform on CBS This Morning on Saturday. He also stopped by NPR's World Café to talk about the new album and perform a few songs both new and old.

“All of Mr. Oberst’s gifts align on Upside Down Mountain,” writes New York Times music critic Jon Pareles: “his empathy, his unassumingly natural melodies, the quavery sincerity in his voice, the plain-spoken but telling lyrics that he’s now careful to deliver clearly."