Recent developments in spatial audio — albums old and new being mixed for immersive formats — have made news in the world of pop.

Given the right production process (in the studio) and tech setup (at home), headphone sounds no longer need feel so statically pressed to each ear; instead, they can seem to whiz around your head or beckon from the nape of your neck.

Or simply breathe anew. Whether you’re focusing on a stray slide-guitar accent in the Dolby Atmos mix of Taylor Swift’s “Mine (Taylor’s Version)” or appreciating the serrated details of brass-arrangement filigree in Frank Zappa’s vintage “Big Swifty,” the idea is to bring the souped-up, three-dimensional feel of large-speaker arrays into your ears.

But classical music was there decades ago. Deutsche Grammophon and the Philips label both experimented with “Quadraphonic” — or four-channel releases — in the 1970s. More recently, binaural recordings and mixes, designed to simulate that 3-D feel, have been a delight. Now, though, these and other spatial-production practices are enjoying deeper corporate investment, including head-tracking technology as a feature of Apple’s newest Beats headphones. (When you move your head while wearing these — with the tracking option enabled — sound-points seem to stay fixed in your 360-degree field, even if you swerve about.)