SecondHandSongs URLs are present in three different forms in the database:

• 14667 http://www.secondhandsongs.com/
• 1062 http://secondhandsongs.com/
• 819 https://secondhandsongs.com/

They should be standardized to the www-less HTTPS form. This requires two steps: a) Add URL cleanup code for SHS. b) Change the existing URLs (this needs to be done by bot because it is more than just s/^http:/https:/).

Cleanup code also needs to deal with URLs such as these:

• https://secondhandsongs.com/work/140348/adaptations#nav-entity
• https://secondhandsongs.com/artist/48874+56478+64931 (for a group of three artists)
• performance and label URLs may need own link types/blocking for unappropriate entity types