On Amarok 1 you can fetch similar tracks from Last.fm for a rolling dynamic playlist, not optimal for iPod transfer as you need to be playing the music to fetch the tracks though...
More information about formatting options
On Amarok 1 you can fetch
On Amarok 1 you can fetch similar tracks from Last.fm for a rolling dynamic playlist, not optimal for iPod transfer as you need to be playing the music to fetch the tracks though...