Instagram Reels aren't just a way to add music to your posts. Now, you can add music to photos you add to the feed. Instagram says music plays a "huge part" of expression on the platform. “No matter which format works best to tell your story, you can now add a soundtrack to your favorite photo moments to bring them to life,” the company says.
So, when you upload a photo, you can select a song that will play when a photo is viewed. There should be an "Add Music" option in the interface. You can select songs or browse through Instagram's Trending or For You pages. Once you find the song you like, you can clip the duration (between five and 90 seconds) and then post.