======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '553'
                                          'artist'  'Opeth'
                                     'text_people'  'Opeth'
                                         'release'  'Still Life'
                                           'title'  'Serenity Painted Death'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['progressive death metal', 'metal', 'melodic death metal', 'death metal', "
 "'progressive metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '4'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '126.174'
                                             'key'  '8A'
                                        'acoustid'  '826db169-2021-425c-a185-e325356f1ad2'
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            "Joe's Metal Collection"
'TALB' (Album/Movie/Show title)                     'Still Life'
'TBPM' (BPM (beats per minute))                     '126.174'
'TCOM' (Composer)                                   'Opeth'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '2002'
'TEXT' (Lyricist/Text writer)                       'Opeth'
'TIT2' (Title/songname/content description)         'Serenity Painted Death'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Opeth'
'TPE2' (Band/orchestra/accompaniment)               'Opeth'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'Peaceville'
'TRCK' (Track number/Position in set)               '3/4'
'TSO2'                                              'Opeth'
'TSOP' (Performer sort order)                       'Opeth'
'TXXX:ASIN'                                         'B0000666C7'
'TXXX:Acoustid Id'                                  '826db169-2021-425c-a185-e325356f1ad2'
'TXXX:BARCODE'                                      '801056607812'
'TXXX:CATALOGNUMBER'                                'DLPVILE 78'
'TXXX:MusicBrainz Album Artist Id'                  'c14b4180-dc87-481e-b17a-64e4150f90f6'
'TXXX:MusicBrainz Album Id'                         '545448a8-2969-3faf-b232-c0d3114a4e16'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'c14b4180-dc87-481e-b17a-64e4150f90f6'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['progressive death metal',
 'metal',
 'melodic death metal',
 'death metal',
 'progressive metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.89 dB'
'TXXX:replaygain_track_peak'                        '0.444707'

========================== row from database ==========================
                                              'id'  1276981
                                            'path'  /data/Music/Bulk/00dwimp/Opeth/Still Life/Opeth - Serenity Painted Death.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  553
                                           'genre'  eid-metal-death
                                        'filesize'  8862792
                                           'mtime'  1620302132
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp eid metal death
                                      'tag_artist'  Opeth
                                     'tag_release'  Still Life
                                       'tag_title'  Serenity Painted Death
                                             'bpm'  126.174
                                    'search_title'  'death':3 'painted':2 'serenity':1
                                   'search_artist'  'opeth':1
                                  'search_release'  'life':2 'still':1
                                     'search_rest'  '00dwimp':1 'death':4 'eid':2 'metal':3
                                    'search_combo'  '00dwimp':7 'death':3A,10 'eid':8 'life':6C 'metal':9 'opeth':4B 'painted':2A 'serenity':1A 'still':5C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['progressive death metal', 'metal', 'melodic death metal', 'death metal', 'progressive metal']
                                        'tag_date'  2002
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302132.2411692  (2021-05-06 13:55:32)
                             'size'  8862792