You can view and edit the details of a song.
View details — Right-click a song, and select Get track details….
Edit details using the detail editor
If you select multiple songs for editing, you can select which details to edit for the songs in the Summary tab. Select the check box next to the detail field you want to change. When you change the contents of the field, that information is changed for all the selected songs. You can only change information that is common to all the selected songs.
Edit details using drag and drop
Edit the details of a single song — Drag the song onto another song. The following details of the song you dragged are updated to match the target song: album art, album title, song artist, genre, and year. Dragging a single song onto a group of songs or an album only updates those details on the dragged song where all relevant fields within the target songs contain the same information.
Edit the details of several songs — Select several songs, then drag them onto another song. Dragging multiple songs updates them all.
Edit details in the My music view
Edit an artist name — Select Artists. Slowly double-click the artist name. When you edit or change the artist name, the name is changed in the details of all the songs by that artist. You can edit song or album details in any category of the My music view.