switching artist-song fields

[MrMark]

when I did a bunch of conversions from mp3g to kma too many songs and titles were in the wrong field..e.g. hinder would be under song.....is there a program or an easy way to change these files without going through every one by one through the edit on here...I know of programs which will do the mp3g's but not .kma...anyone with any ideas.....this is way to time comsuming as it is