I am looking for a site or service that can do the following:

I want to be able to identify two or more songs, have the site analyze
the songs for their unique rhythm, instrument selection, and style and
then offer song titles that are a close match.
I like techno music and certain songs I like better than others.  I'd
like a way to identify a certain style or rhythmic pattern that is
similar in those songs that I like and compare it to a database of
songs for matches or close matches.  The more songs I give as input,
the more narrowed the results would be.  This can be used for not only
techo music, but any type of music.  It would make looking for music
that fits my style much easier and allow me to find songs from groups
or artists that my not get radio time or are just not well known.

If there isn't a site that can do this, is there music analyzing
software available that would make building a site like this feasible?

This idea is similar to the Global Jukebox, a program (apparently
still in prototype) that can analyze songs and dances from around the
world and make comparisons between them.

"Performance Style Research"
The Alan Lomax Collection
http://www.alan-lomax.com/styleresearch.html

"The Amazing Global Jukebox", by AudioFile staff (February 19, 2001)
[includes a Windows Media video about the Global Jukebox]
TechTV
http://www.techtv.com/audiofile/features/story/0,23008,3368031,00.html

Just as aside of what you are really looking for, namely, "music that
I like", have you considered collaborative filtering?  Basically, this
is based on the concept that people who as a group like A, B, and C,
will also tend to like D.  Which is to say, people tastes tend to
cluster.  The CD selector at amazon.com works this way, when it says,
"people who bought this CD also bought the following:".

turnip-ga