======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '292'
                                          'artist'  'Uriah Heep'
                                     'text_people'  ''
                                         'release'  "The Magician's Birthday"
                                           'title'  'Echoes in the Dark'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'hard rock', 'progressive rock', '70s', 'classic rock']"
                                     'discogstags'  "['rock', 'hard rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '8'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '124.775'
                                             'key'  '9A'
                                        'acoustid'  '0abe507e-da2a-4dde-9576-3efb571016e4'
rest: ''

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

'TALB' (Album/Movie/Show title)                     "The Magician's Birthday"
'TBPM' (BPM (beats per minute))                     '124.775'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1972'
'TDRC' (Recording time)                             '1989-11-21'
'TIT2' (Title/songname/content description)         'Echoes in the Dark'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Uriah Heep'
'TPE2' (Band/orchestra/accompaniment)               'Uriah Heep'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'METAL MANIA'
'TRCK' (Track number/Position in set)               '4/8'
'TSO2'                                              'Uriah Heep'
'TSOP' (Performer sort order)                       'Uriah Heep'
'TXXX:Acoustid Id'                                  '0abe507e-da2a-4dde-9576-3efb571016e4'
'TXXX:BARCODE'                                      '4988004015502'
'TXXX:CATALOGNUMBER'                                'TECP-18009'
'TXXX:MusicBrainz Album Artist Id'                  'f1548c5b-329e-4036-921c-02213a04b525'
'TXXX:MusicBrainz Album Id'                         'e1f59116-3b70-4a87-8401-bc47baa7ed9c'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'f1548c5b-329e-4036-921c-02213a04b525'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'hard rock']
'TXXX:lastfmtags'                                   ['rock', 'hard rock', 'progressive rock', '70s', 'classic rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.22 dB'
'TXXX:replaygain_track_peak'                        '0.568927'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'7e5ed8e1-bda2-41cb-98ac-2304107c332f')

========================== row from database ==========================
                                              'id'  1526686
                                            'path'  /data/Music/Bulk/00poprockelectronic/Uriah Heep/Uriah Hepp/05 - The Magician_s Birthday/04 - Echoes In the Dark.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  292
                                           'genre'  rock-cppex-classic
                                        'filesize'  7018226
                                           'mtime'  1636039359
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Hepp 05 Magician_s 04 In rock cppex classic
                                      'tag_artist'  Uriah Heep
                                     'tag_release'  The Magician's Birthday
                                       'tag_title'  Echoes in the Dark
                                             'bpm'  124.775
                                    'search_title'  'dark':4 'echoes':1 'in':2 'the':3
                                   'search_artist'  'heep':2 'uriah':1
                                  'search_release'  'birthday':5 'magician':2 'magicians':4 's':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 'classic':8 'cppex':7 'hepp':2 'in':5 'magician':3 'rock':6 's':4
                                    'search_combo'  '00poprockelectronic':12 'birthday':11C 'classic':19 'cppex':18 'dark':4A 'echoes':1A 'heep':6B 'hepp':13 'in':2A,16 'magician':8C,14 'magicians':10C 'rock':17 's':9C,15 'the':3A,7C 'uriah':5B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'hard rock', 'progressive rock', '70s', 'classic rock']
                                        'tag_date'  1989
                                     'discogstags'  ['rock', 'hard rock']

============================== file details ==============================
                                           'mtime'  1636039358.5940516  (2021-11-04 16:22:38)
                             'size'  7018226