Here is a list of Katie's studio songs, i.e. songs that have been recorded specifically for an album. Hence, live performances are omitted. (I have nothing against live performances, you understand, they are amazing and I'd happily marry one, but for geeky reasons it works better this way. Trust me. Or don't. Whatever.)
The "Album", "Lyrics" and "Track Notes" columns contain links: click on the image or text to go to the relevant page. Isn't it all wonderful?