The singer-songwriter has been making his way in Nashville and reckoning with his past. On his third album, “The Weakness,” he leans into his love of Americana and pop-punk, and rebuilds.PORTLAND, Tenn. — When the singer-songwriter Ruston Kelly’s marriage to Kacey Musgraves ended, he sought solace in old houses.First, at the invitation of his friend John Carter Cash — Johnny and June’s son — he retreated to the bungalow in the mountains of Virginia that had belonged to Maybelle Carter, the family’s matriarch. “I just wept on Mother Maybelle’s kitchen floor for three days,” Kelly said.Then he bought and set about restoring a 120-year-old home, first owned by the mayor of this Tennessee farming community 40 miles north of Nashville, where he knew no one.“This house saved me,” Kelly said on a recent gray afternoon, as he sat in a guitar-lined songwriting studio that would normally be the living room. It’s where he wrote most of “The Weakness,” his third and most assured and expansive studio album.It wasn’t intentional, but it was “poetic,” he added, “rebuilding a house, and also restructuring my identity as a person and artist at the same time.”“The Weakness,” out Friday, charts the fragile stability that Kelly, 34, has carved for himself, after an unusual path to music that included training to be a competitive figure skater and a decade of drug addiction. He briefly relapsed midway into his three-year marriage to Musgraves, the pop country star. (He was already sober when they divorced in 2020.) The album’s dozen songs, propelled by his Americana and pop-punk tastes, thread the tension between downbeat and shimmery; he calls his style “dirt emo.” Its title track features reverb-heavy vocals and a slow build to guitar peels, finding power in fallibility.“I wanted this record to sound like you’re in this field,” he said, “when the air blows hot. It might be twilight. And it’s about to really storm.”He shot the video for “Mending Song” at his home, wearing paint-splattered overalls among his power tools. It’s an achingly personal and finespun track plucked out on baritone ukulele. “I will forgive what I’ve done out of despair,” he sings. “I’m trying to find the happiness and healing, in the things that still need some repair.”The multi-instrumentalist Nate Mercereau (Lizzo, Leon Bridges, the Weeknd), who helped produce the album, said Kelly’s journal-entry style of songwriting often led to catharsis. “You’re putting these details of your life into something that is going to create what your next life is going to be — the future, after the record,” he said. That’s true for any artist, “but Ruston really puts it on display.”Kelly and Mercereau recorded in Mercereau’s Los Angeles studio, lit by 40 electronic candles, just the two of them on nearly every note. Kelly abandoned both his usual collaborators and some of the instrumentation, like the pedal steel guitar (played by his father) that had featured on his previous work, and turned up influences like the National, Sufjan Stevens, and Justin Vernon of Bon Iver. “I had to take a couple risks on this record,” he said.“The Weakness,” Kelly’s third album, charts the fragile stability he’s carved for himself, after an unusual path to music that included training to be a competitive figure skater and a decade of drug addiction.Avery Norman for The New York TimesThough some of the songs deal directly with his marriage unraveling, and some have oblique references that fans may read into, it is not a divorce record, according to Mark Williams from Rounder Records, who worked on it — the first time Kelly engaged with an A&R rep. “We talked about it more as a transformative record, one of transition,” Williams said.In Kelly’s wood-paneled home studio, surrounded by talismanic images of crows, angels, a taxidermy bird and stacks of composition notebooks, his ambition, and self-help plan, was on full display. White boards listed his daily goals: vocal exercises; workouts with cardio; 10,000 steps; follow a meal plan; four bottles of water; whiten teeth; free write three pages a day. “I want to give myself the best opportunity to win,” he said, unguarded and resting a leg on his tattered wooden desk.Williams, who is now the president of Rounder, said that the songwriter “was very different than I’d thought he’d be,” given that his first two albums focus, often intimately, on his addiction and sobriety. “He was very personable and funny, and had a sort of sense of joy and optimism about him that I didn’t get from the music. And I was really fascinated by that,” Williams said. He encouraged Kelly to put that into his sound “so the art could reflect on the life, and vice versa.” (One stoner track, “Michael Keaton,” hinges on a joke about the 1996 comedy “Multiplicity.”)Kelly was born in South Carolina, the youngest of three siblings, but grew up all over; his father, Tim, was a high-flying executive at a paper company. Their household was always musical: Tim played the steel guitar expertly — not country-twangy but “highly emotional, washy, heavy reverb,” Kelly said — and harmonized with Kelly’s mother, Sherre. “They would sing Jackson Browne songs and Linda Ronstadt; Bonnie Raitt; older folk songs. It was wonderful.” By junior high, Kelly was plotting his own albums.When Kelly was 8 or 9, he also started figure skating, following his sister, Abigail, to a rink. Soon he was competing and winning awards, and as a young teen, he went alone to live with married coaches in Michigan, his eye on the Olympics. But they didn’t take care of him, he said, and the coaching program ended in a sex scandal with another young skater. As Kelly’s life there was imploding, he hid out in his room, and wrote a song.“It was the first time that I was using creative expression as a tool to feel better — to make sense of a situation,” he said. “I felt like I unlocked something, like I had this safe space in this house. I was invincible. Music became like a tangible weapon.”It helped him through what he described as the lifelong emotional fissure that led to an addiction in his 20s to amphetamines and cocaine. “There was a crack somewhere that just never quite could close,” he said.Three months after an overdose, following a performance at the storied Nashville songwriter venue Bluebird Cafe, he met Musgraves.“I fell so in love,” he said, “in such a cleareyed way. And that was sustenance for me.”Their union seemed like a honeyed country music matchup: They duetted on a June and Johnny Cash tribute, and Musgraves wrote the floaty love song “Butterflies” for her breakthrough Grammy-winning album “Golden Hour.”Kelly went cold-turkey from pills at the beginning, and was fully sober later. For a time, the relationship filled all his needs — “which is really beautiful, but it’s not sustainable,” he said.Kelly has been carefully preparing for the release of his new album: “I want to give myself the best opportunity to win.”Avery Norman for The New York TimesMusgraves released her own divorce album, “Star-Crossed,” in 2021, which included sentiments that she said she hadn’t shared with him. (He didn’t fare so well in some accountings.) Apart from a track or two, Kelly said he hadn’t listened to it. “I don’t know her intention,” he said. “I know her heart, and it’s a wonderful one.”In 2021, he produced the debut album by his father, now 66, who won a major songwriting competition as a young man but had abandoned music for a more stable career. The younger Kelly called in friends like the hit songwriter Hillary Lindsey, one of his dad’s favorites, to guest on it. In the studio the day Lindsey was recording, there was more elation etched on his father’s face than he’d ever seen, Kelly recalled. “I can win every Grammy in the world, and it won’t compare to the sense of accomplishment that I felt for him.” Both his father and his sister, Abigail, who sings with Dashboard Confessional, perform with him on tour.Kelly credits his family and support network — including his girlfriend, Tori Barnes, a model — with reorienting him toward joy and experimentation.At Mercereau’s suggestion, the track “Better Now,” a circumspect meditation on hope late in the album, ends with audio of Kelly walking around Maybelle Carter’s mountain bungalow. He first visited pre-divorce, when John Carter Cash told him, “There’s a lot of secrets in that house, and I really think you should go and find them.” He opened drawers and rifled through books, discovering Johnny Cash’s handwritten notes to his family and to country luminaries like Kris Kristofferson. It was a lineage — and an industry — that Kelly hadn’t felt quite ready to step up to before.His foundation is as firm as it’s ever been: “I feel very ready now.” More