Composer in ID3 tags?

[thinkpad20]

I listen to a lot of classical music, and it is helpful in iTunes when I am running windows to have the option to display the composer of a piece. In iTunes, it is part of the file info; I am assuming that it is part of the ID3 tag. But in Linux, the three audio programs I use/have used (xmms, rhythmbox, zinf) don't seem to list the composer as part of a song's info. Does anybody know what i'm talking about? And if they do, do they know any xmms/rhythmbox/zinf plugins that allow it to display the composer, or an audio program that will list it?

Thanks
Allen