furzr is an old project (2013) which used some deprecated technologies:

• Server and hosting: Google App Engine (Java servlets)
• Client side: jQuery, arbor.js, d3.js
• Data: last.fm API, Rovi API and 7digital API

http://furzr.net/?[=[&= ...]]

Parameters list:

• artist Specify an artist name as a starting tree. Default is an empty tree.

• similar_number Specify the number of similar artists of each tree growth. Default is 8.

• mode Specify the starting mode. Allowed values are "htd" for the huge tree of death mode and "cs" for the crazy snake mode. Default is the huge tree of death mode.

• csid Specify a crazy snake identifier. The specified crazy snake is loaded as a starting tree and the crazy snake mode is set. The two ends of the snake are expanded.

• sound Specify if sound is on when starting the application. Possible values are "on" or "off". Default is "on".

• api Specify the backend API to use for similarity data. Default is lastfm. Possible values are :

• lastfm Last.fm with 7digital audio preview.

• amgsimilars Rovi music, similar artists.

• amginfluencers Rovi music, influencer artists.

• amgfollowers Rovi music, follower artists.

• amgmoviesimilars Rovi movie, similar movies.

• amgmovierelated Rovi movie, related movies.

Internal parameters list:

• proxy Use the proxy to get previews URLs with 7digital. Default uses the proxy only when there is a cross-domain issue. Value to use it: "always". Last.fm calls never use proxy. Rovi Cloud Services calls always use proxy.

If the parameter csid is specified, parameters artist and mode are ignored.