======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '210'
                                          'artist'  'Hedningarna'
                                     'text_people'  ''
                                         'release'  'Kaksi!'
                                           'title'  'Joupolle Joutunut'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swedish', 'folk rock', 'scandinavian folk', 'folk', 'nordic']"
                                     'discogstags'  "['rock', 'folk, world, & country', 'folk rock', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-eur-northern-sweden'
                                             'bpm'  '92.307'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Kaksi!'
'TBPM' (BPM (beats per minute))                     '92.307'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-northern-sweden'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Joupolle Joutunut'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hedningarna'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'folk, world, & country', 'folk rock', 'folk']
'TXXX:lastfmtags'                                   ['swedish', 'folk rock', 'scandinavian folk', 'folk', 'nordic']
'TXXX:original release date'                        ['1992', '1996']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.42 dB'
'TXXX:replaygain_track_peak'                        '0.561612'

========================== row from database ==========================
                                              'id'  765474
                                            'path'  /data/Music/Bulk/00localcharacter/Hedningarna/Hedningarna - Joupolle Joutunut.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  210
                                           'genre'  loc-eur-northern-sweden
                                        'filesize'  3373057
                                           'mtime'  1621629704
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter loc eur northern sweden
                                      'tag_artist'  Hedningarna
                                     'tag_release'  Kaksi!
                                       'tag_title'  Joupolle Joutunut
                                             'bpm'  92.307
                                    'search_title'  'joupolle':1 'joutunut':2
                                   'search_artist'  'hedningarna':1
                                  'search_release'  'kaksi':1
                                     'search_rest'  'eur':2 'loc':1 'northern':3 'sweden':4
                                    'search_combo'  'eur':6 'hedningarna':3B 'joupolle':1A 'joutunut':2A 'kaksi':4C 'loc':5 'northern':7 'sweden':8
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'folk rock', 'scandinavian folk', 'folk', 'nordic']
                                        'tag_date'  1996
                                     'discogstags'  ['rock', 'folk, world, & country', 'folk rock', 'folk']

============================== file details ==============================
                                           'mtime'  1621629704.233208  (2021-05-21 22:41:44)
                             'size'  3373057