(0.0.1) Returns the genre from a ID3 tag public
(0.0.1) Returns the title string from a ID3 tag
(0.0.1) Returns true if the tag is empty public
(0.0.1) Returns the track number from a ID3 tag
(0.0.1) Returns the year from a ID3 tag public
(0.0.1) Returns the artist string from a ID3 tag
(0.0.1) Returns the comment from a ID3 tag public