The most common format for audio metadata is ID3. There are two versions in use today, and you will probably see references to them as ID3v1 and ID3v2. Most software packages are able to read both.
Audio metadata can sometimes be used to describe the characteristics of the audio stream used by audio players and decoders. We do not use this definition. Instead, we refer to the information about the file similar to metadata in images.
Most music players give an option to modify the ID3 tags. You can also edit it in Windows, much in the same way as image metadata: