Without fanfare, the Google Research released this week a very interesting online tool that can show the evolution of the main musical styles and their artists over the past six decades: the Music Timeline.
Once the service is accessed, you stumbles with a graph showing, for example, as jazz was popular in the 1950s, but lost ground from the 1960s to pop and rock or like metal and the soul gained strength from the same time and remained more or less stable since.
Clicking on any of the styles, the Music Timeline displays details of its tracks and albums that marked each variation over the last few years. If you click Metal and pass the course-click Thrash, for example, will see the album Reign in Blood, Slayer, as featured 1986 year of its release. In fact, this album is considered one of the most important style.
Also gives information on albums, songs or artists in the specific field search tool. If you search by Sepultura, for example, the timeline will show which of the main drives of the band are more (and less) popularities.
Even lesser-known artists appear there, I was surprised to find results on the Diablo Swing Orchestra, a group that I appreciate a lot, but it should be unknown to the mothers of their members (in time: I am using metal in the examples because it is the style I like, but reinforcing that there are several others out there).
These analyzes are all made based on usage statistics Google Play Music. The volume of data, you can see that the results are generated automatically, which refers to the following question: the collection available in the service is enough to show accurate results?
I do not know, but the staff GigaOM up a coherent hypothesis: most likely, Google included comparison with the MP3 libraries of its members to improve the accuracy of information.
Be that as it may, the Music Timeline even seems quite realistic, thus it gives to spend some time playing in the service. You can even listen to the albums found there, provided it is in a country where Google Play Music is available officially (not the case in Brazil, unfortunately).