In most countries, your music is automatically protected by copyright as soon as it is created and fixed in a tangible form that is perceptible either directly or with the aid of a machine or device, such as when you record it. Registering your music with a copyright office can provide additional legal protections and make it easier to enforce your rights if needed. However, it's not a strict requirement to copyright your music before putting it on Spotify. Spotify itself has systems in place to track and manage royalties for artists. Still, if you have concerns about copyright infringement or plan to take legal action in case of disputes, registering your music with the appropriate copyright office can offer added security and evidence of ownership.