Classical music recognition with Google Glass

Imagine that you are going to a classical music concert, and during the performance of a symphony you would like to know more about the composer, the time in which he lived, the orchestra, the conductor,
you would like to follow the musical notes per instrument and maybe some more explanation about each 'stage' of the composition.

Whether you get the translation of an opera during execution. Classical music is just such as a landmark or a painting in most cases, unique and can therefore be identified.

That way listening to classical music will become a real experience, even in the living room.