I'm creating a music player for a web site. All of the songs have words and music (i.e. you can pull up lyrics or sheet music for a song), but some of the recordings are only the music.
How can I indicate which songs in the list have vocal recordings, and which ones are only the instrumental minus tracks? Is there an icon that would indicate it well?
I'm attaching an image of what I have currently. It's still pretty rough, but it may help for context.