======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '586'
                                          'artist'  'Opeth'
                                     'text_people'  'Opeth'
                                         'release'  'Still Life'
                                           'title'  "Godhead's Lament"
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', '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'  '2'
                                      'tracktotal'  '3'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '128.577'
                                             'key'  '10A'
                                        'acoustid'  '7b090ff1-1778-4444-85c0-9d625db0165a'
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Track 2'
'TALB' (Album/Movie/Show title)                     'Still Life'
'TBPM' (BPM (beats per minute))                     '128.577'
'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)         "Godhead's Lament"
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Opeth'
'TPE2' (Band/orchestra/accompaniment)               'Opeth'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Peaceville'
'TRCK' (Track number/Position in set)               '2/3'
'TSO2'                                              'Opeth'
'TSOP' (Performer sort order)                       'Opeth'
'TXXX:ASIN'                                         'B0000666C7'
'TXXX:Acoustid Id'                                  '7b090ff1-1778-4444-85c0-9d625db0165a'
'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'                                       '4'
'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'                        '-1.50 dB'
'TXXX:replaygain_track_peak'                        '0.443225'

========================== row from database ==========================
                                              'id'  1496668
                                            'path'  /data/Music/Bulk/00dwimp/Opeth/Still Life/Opeth - Godhead_s Lament.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  586
                                           'genre'  eid-metal-death
                                        'filesize'  9386077
                                           'mtime'  1620302132
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp Godhead_s eid metal death
                                      'tag_artist'  Opeth
                                     'tag_release'  Still Life
                                       'tag_title'  Godhead's Lament
                                             'bpm'  128.577
                                    'search_title'  'godhead':1 'godheads':3 'lament':4 's':2
                                   'search_artist'  'opeth':1
                                  'search_release'  'life':2 'still':1
                                     'search_rest'  '00dwimp':1 'death':6 'eid':4 'godhead':2 'metal':5 's':3
                                    'search_combo'  '00dwimp':8 'death':13 'eid':11 'godhead':1A,9 'godheads':3A 'lament':4A 'life':7C 'metal':12 'opeth':5B 's':2A,10 'still':6C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           '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-4', 'q-grit-3']
                                      'lastfmtags'  ['progressive death metal', 'metal', 'melodic death metal', 'death metal', 'progressive metal']
                                        'tag_date'  2002
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302132.233608  (2021-05-06 13:55:32)
                             'size'  9386077