$VAR1 = {
          'artists' => undef,
          'ratings' => 'ratingsvalue',
          'songs' => 'songsvalue',
          'genres' => 'genrevalue',
          'albums' => 'albumvalue',
          'year' => 'yearvalue'
        };
Odd number of elements in hash assignment at ff2.pl line 21.
$VAR1 = {
          'ratingsvalue' => 'year',
          'songsvalue' => 'ratings',
          'artists' => 'songs',
          'genres' => 'genrevalue',
          'yearvalue' => undef,
          'albums' => 'albumvalue'
        };
$VAR1 = {
          'artists' => undef,
          'ratings' => 'ratingsvalue',
          'songs' => 'songsvalue',
          'genres' => 'genrevalue',
          'albums' => 'albumvalue',
          'year' => 'yearvalue'
        };