======================== unified (from filesystem) ========================
                                         'bitrate'  '176.221'
                                        'duration'  '388'
                                          'artist'  'Opeth'
                                     'text_people'  'Mikael Åkerfeldt/Opeth'
                                         'release'  'Ghost Reveries'
                                           'title'  'Atonement'
                                           '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-4', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-4', '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'  '4'
                                      'tracktotal'  '8'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-metal-progressive'
                                             'bpm'  '94.021'
                                             'key'  '11B'
                                        'acoustid'  'c2beaa02-cfb4-4ec9-bda3-87ca7282dc13'
rest: ''

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

'COMM::eng'                                         '720FA808'
'COMM:ID3v1 Comment:XXX'                            '720FA808'
'COMM:ID3v1 Comment:eng'                            '720FA808'
'PRIV:AverageLevel:\x0e\x19\x00\x00'                PRIV(owner='AverageLevel', data=b'\x0e\x19\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Ghost Reveries'
'TBPM' (BPM (beats per minute))                     '94.021'
'TCOM' (Composer)                                   'Mikael Åkerfeldt/Opeth'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-progressive'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005-08-29'
'TEXT' (Lyricist/Text writer)                       'Mikael Åkerfeldt'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Opeth'], ['producer', 'Jens Bogren'], ['engineer', 'Opeth'], ['engineer', 'Jens Bogren'], ['mix', 'Opeth'], ['mix', 'Jens Bogren'], ['bass guitar', 'Martín Méndez'], ['lead vocals vocal', 'Mikael Åkerfeldt'], ['drums and percussion', 'Martin Lopez'], ['electric piano, grand piano, mellotron and organ', 'Per Wiberg'], ['guitars', 'Mikael Åkerfeldt'], ['guitars', 'Peter Lindgren']])
'TIT2' (Title/songname/content description)         'Atonement'
'TKEY' (Initial key)                                '11B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Opeth'
'TPE2' (Band/orchestra/accompaniment)               'Opeth'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Roadrunner Records'
'TRCK' (Track number/Position in set)               '4/8'
'TSO2'                                              'Opeth'
'TSOP' (Performer sort order)                       'Opeth'
'TSRC' (ISRC (international standard recording code))  'NLA320581221'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'TXXX:ASIN'                                         'B000AADYYO'
'TXXX:Acoustid Id'                                  'c2beaa02-cfb4-4ec9-bda3-87ca7282dc13'
'TXXX:BARCODE'                                      '016861812324'
'TXXX:CATALOGNUMBER'                                'RR 8123-2'
'TXXX:MusicBrainz Album Artist Id'                  'c14b4180-dc87-481e-b17a-64e4150f90f6'
'TXXX:MusicBrainz Album Id'                         '39858f32-d9f0-41e1-ad92-aabc0740bcb1'
'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'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.18 dB'
'TXXX:replaygain_track_peak'                        '0.525843'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fda84d43-cb04-45db-b428-df9f9b01f76f')

========================== row from database ==========================
                                              'id'  1275808
                                            'path'  /data/Music/Bulk/00dwimp/Opeth/Ghost Reveries/Opeth - 04 - Atonement.mp3
                                         'working'  None
                                         'bitrate'  176
                                    'duration_sec'  388
                                           'genre'  eid-metal-progressive
                                        'filesize'  8555888
                                           'mtime'  1620310887
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 04 eid metal progressive
                                      'tag_artist'  Opeth
                                     'tag_release'  Ghost Reveries
                                       'tag_title'  Atonement
                                             'bpm'  94.021
                                    'search_title'  'atonement':1
                                   'search_artist'  'opeth':1
                                  'search_release'  'ghost':1 'reveries':2
                                     'search_rest'  '00dwimp':1 'eid':2 'metal':3 'progressive':4
                                    'search_combo'  '00dwimp':5 'atonement':1A 'eid':6 'ghost':3C 'metal':7 'opeth':2B 'progressive':8 'reveries':4C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  11B
                                           '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-4', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['progressive death metal', 'metal', 'melodic death metal', 'death metal', 'progressive metal']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310887.0121286  (2021-05-06 16:21:27)
                             'size'  8555888