Why does iTunes change the order of songs in a playlist?

How can I change the order of purchased songs on iTunes?

• I really miss how my old iPod had the purchased songs listed by order of when it was purchased. It makes it really difficult to find the songs that I've recently downloaded and want to add to certain playlists when I can't find them because the purchased songs are all listed by artist name instead of the order in which they were purchased. Is there any way to change my 4th generation ipod purchased playlist to list them in order of purchase?

• Answer:

  If there is a purchased date column, then just click the top of that column. Like where it says artist, song, album. If you click any of those it will arrange them alphabetically by whichever one you click.