Hi,
Yes, I found this to do somewhat what I like, but:
1. it does not automatically update the playlist when the track changes. I have to press <F5> to see simular artists for the new track
2. if I select a track in the resulting simular artist overview, it would be great when the information in the details pane would change to those of the selected track (instead of sticking to the now playing track info)
3. if I Refresh several times, the result of simular artist changes every time. I think I would prefer to always have the same (top x?) result and presented in the same order. I found I can change the number of results anyhow in the settings of the Auto Playlist
4. In the Music Recommendations add-on in Songbird one gets a list with top 5 simular artists and an indication if they are already in your library. Clicking on the picture in the list takes you to a new TAB, showing the LastFM page. Clicking on the name takes you to a new TAB, showing all the artist's songs in your library. Very nice feature.
Thanks, Gerard
PS. I wanted to add a picture to the topic but do not see a button allowing this . . .