id3v1 does n't have album-wide artists , so returns null ; concode_field_sep String trackNumber concode_elem_sep String artist concode_elem_sep String year concode_elem_sep String album concode_elem_sep String genre concode_elem_sep boolean found concode_elem_sep ID3Comment comment concode_elem_sep String title concode_field_sep String getCompilation concode_elem_sep String getTitle concode_elem_sep String getYear concode_elem_sep String getGenre concode_elem_sep String getDisc concode_elem_sep String getComposer concode_elem_sep String getArtist concode_elem_sep boolean getTagsPresent concode_elem_sep List<ID3Comment> getComments concode_elem_sep String getTrackNumber concode_elem_sep String getString concode_elem_sep String getAlbum
String function ( ) { return null ; }