Getting MetadataReader from track
Getting MetadataReader from track

When we instantiate a new MetadataReader it reads the track from filesystem.
Instead of instantiating a new one everytime, is better to reuse a previously
existing one to keep filesystem access to a minimum.

tooxie/shiva-server,maurodelazeri/shiva-server,tooxie/shiva-server,maurodelazeri/shiva-server