You have that. There is a tag field for composer. You can add a column for composers by right clicking (option click, I assume) the column headers, then drag and drop into the correct order.
I expect classical music is probably always tagged badly, which is why the composer ends up in the artist field. Also, am I supposed to enter for Radiohead: Johnny Greenwood, Thom York, et al. or, just Radiohead? I tunes tagging ability is weak in some places. Also it doesn't help when you have a non-ipod and want to remove some songs and replace with others.
I expect classical music is probably always tagged badly, which is why the composer ends up in the artist field. Also, am I supposed to enter for Radiohead: Johnny Greenwood, Thom York, et al. or, just Radiohead? I tunes tagging ability is weak in some places. Also it doesn't help when you have a non-ipod and want to remove some songs and replace with others.