If there’s one single song that can justify the existence of Paul McCartney’s 24th studio album since leaving the Beatles, it’s track number five, “Early Days". At first blush it seems to be that most heinous of Boomer cliches, the acoustic Those Were the Days ballad where youth-culture narcissism collides with old-people shmaltz, but fairly quickly the song resolves into something much more interesting. While the verses are a rose-tinted reminiscence of McCartney and John Lennon’s brief period of pre-fame friendship in Liverpool, the choruses project something altogether different: “They can’t take it from me/ if they try/ I lived through those early days.” Whereas most of his hippie-era pop contemporaries enthusiastically embraced self-hagiography decades ago, McCartney’s relationship with nostalgia is complicated, and fraught with skepticism, and by embracing these complications he offers an understandably human portrait of a position few of us will ever find ourselves in: watching your life story being converted into mythology by forces outside of your control.

But really, there isn’t a cut out of the thirteen on New that doesn’t make a compelling argument for McCartney continuing to produce music. As his evolving relationship with shmaltz goes to show, he’s continued to stretch out as an artist long after most artists from his generation slipped into a comfortable rut. While it’s not as radical an aesthetic statement his searingly noisy 2008 Electric Arguments, his appearance on a recent EDM banger by Bloody Beetroots, or his stint as frontman for Nirvana, it still pushes hard against the popular conception of what a Paul McCartney record’s supposed to sound like, which is a wonderful thing.

He’s found some enthusiastic partners in this in the album’s four producers, each of whom approaches the collaborative challenge from a different angle. Adele and Florence and the Machine producer Paul Epworth revives the taut, nervy postpunk sound of his early work with Bloc Party for the album-opening “Save Us", and injects the single “Queenie Eye” with aggressively punchy compression and generous splashes of noise. Trad-rock specialist Ethan Johns gives two of the album’s acoustic moments, “Early Days” and Hosanna" an intimacy that’s almost painfully raw. “Alligator” and “New", the two tracks produced by Mark Ronson, are the ones that most closely resemble McCartney’s classic work (late-era Beatles and early Wings, respectively) but he’s given them a modern-sounding density. (He also proves his reputation as an expert vocal producer by stacking McCartney’s voice into a multitracked nod to Pet Sounds at the end of “New.”)

Overseeing the whole project is Giles Martin, son of George, who executive produced the album and directly produced half of the songs. Martin, who was responsible for much of the work on the catalog-spanning Beatles remix project Love, has a natural sense for finding the right balance between McCartney’s sonic ambitions and his established musical identity. As a result, the drum loops and computer-altered electronic sounds and other modern touches that they’ve brought to the table fit comfortably in settings that have over the years become Sir Paul’s trademarks: the jauntily psychedelic faux-classical jingle, the pastoral landscape story-song, the occasional acerbic ripper that he uses to remind us that he’s not all tea and crumpets and quaintly eccentric British aristocrats.

A lot has been made about how busy McCartney’s been keeping himself well past retirement age, and much should be: it’s gratifying and inspiring to see the pop musician who arguably most deserves to rest on his laurels steadfastly refuse to do so. But even more remarkable than his work ethic is the fact that he’s still trying to improve himself as an artist. While the songs on New don’t have the historical import or epic ambition of his best-known work, they also don’t have the same kind of flaws. He’s far less sentimental than he used to be, far less prone to letting his whimsical side carry a song off to cloud cuckoo land, and a much, much better self-editor than he was during the peak of his career. His fellow Boomer musicians could learn a lot from him. As a matter of fact, a lot of the ones from subsequent generations could, too.