1 song has the counterintuitive title “Cardigan.” But then, Taylor Swift has long been the music superstar who made her own weather.

At least, she used to—by topping Billboard’s Hot 100 this week, “Cardigan” represents a bit of a chart comeback for Swift.

For the bulk of her career, dating back to the iTunes Store’s 99-cent heyday, Swift has been a download-selling titan, and “Cardigan” continues the trend, becoming her record 20th top-selling digital song.

(Her closest competitor, Rihanna, has had the top download only 14 times.) Swift also has the most-streamed song of the week—including both views of the official video and audio streams.

As for streams, “Cardigan” pulled 34 million, one of the lower chart-topping streaming totals this year, when rappers like Roddy Ricch and Drake have racked up between 50 million and 75 million in a week.

Sure enough, Billboard reports that “Cardigan” didn’t generate enough airplay in its first full week to make even the bottom rungs of the magazine’s all-genre Radio Songs chart.

Because she’s Taylor Swift, the song does open to 12.7 million in radio audience in its first full week.

The wholesale shift in the music industry’s economic model over the past decade—from selling stuff to streaming stuff—has been tough on the Taylor Swift approach.

But it’s all new for Swift, completely off-cycle from her normal, every-two-years album release schedule—a timetable she followed rigorously, from 2006’s Taylor Swift through last year’s Lover, save for an anomalous three-year gap between 1989 and Reputation.

1 on both the Billboard 200 album chart and the Hot 100 in the same week.

One thing to keep in mind about Billboard’s ranking of Streaming Songs is that it combines both audio streams on services such as Spotify and video streams, mostly from YouTube.

(Remember, also, that for about three years in the mid-’10s, Swift had pulled all her music from Spotify.) Over the past eight years, anytime Swift has had a big streaming hit, it’s been goosed by one of her glossy, megabudget music videos, like “Blank Space” or especially “Bad Blood,” which was launched like a Hollywood summer blockbuster.

The week in 2015 that “Blood” vaulted to No. 1 on the Hot 100, Billboard reported that literally 99 percent of its streaming activity came from views of that music video.

As late as last year, videos were still vital to Swift’s Hot 100 performance: The video for “Me!” launched to record YouTube views, which accounted for a large proportion of her chart points the week the song vaulted to No. 2.

But for all that effort, the video has been less essential to the song’s chart command than usual for Swift.

“Cardigan” launched as only the sixth-biggest music video on YouTube for the week, with strong but not record-breaking views.

Billboard maintains a separate On-Demand Songs chart that isolates audio streaming data at places like Spotify and Apple Music, sans video, and “Cardigan” is tops on that chart.

Indeed, that chart’s Top 20 this week is 65 percent Swift songs—almost every song on Folklore—the sort of dominant streaming performance we normally expect from a returning rapper debuting with his new project.

In other words, Taylor Swift has finally decoded how you score big hits in the age of Spotify—and she did it not with the album where she tried to beef like a rapper but the album where she turned inward and “indie.” The sound of the music mattered less than the way Swift rolled it out: dropping it like a Zeitgeist-sweeping bomb rather than a weekslong campaign.