======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '236'
                                          'artist'  'The Clash'
                                     'text_people'  ''
                                         'release'  'London Calling'
                                           'title'  'Death or Glory'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
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                                      'lastfmtags'  "['punk rock', 'classic rock', 'punk', 'british', 'rock']"
                                     'discogstags'  "['rock', 'new wave', 'punk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '19'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk;rock-cppex'
                                             'bpm'  '136'
                                             'key'  '8B'
                                        'acoustid'  'b1b65432-7c16-4e0f-8318-0bf3c50475a6'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:{\x15\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x15\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'London Calling'
'TBPM' (BPM (beats per minute))                     '136'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-punk', 'rock-cppex']
'TDOR' (Original release time)                      '1979'
'TDRC' (Recording time)                             '1999-10-01'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Guy Stevens'], ['engineer', 'Bill Price'], ['membranophone', 'Topper Headon'], ['vocals', 'Paul Simonon'], ['vocals', 'Joe Strummer'], ['bass guitar', 'Paul Simonon'], ['guitar and piano', 'Mick Jones'], ['guitar and piano', 'Joe Strummer']])
'TIT2' (Title/songname/content description)         'Death or Glory'
'TKEY' (Initial key)                                '8B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Clash'
'TPE2' (Band/orchestra/accompaniment)               'The Clash'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Columbia'
'TRCK' (Track number/Position in set)               '12/19'
'TSO2'                                              'Clash, The'
'TSOP' (Performer sort order)                       'Clash, The'
'TSRC' (ISRC (international standard recording code))  'GBARL1200691/GBBBN7902025'
'TXXX:ASIN'                                         'B00002MVQO'
'TXXX:Acoustid Id'                                  'b1b65432-7c16-4e0f-8318-0bf3c50475a6'
'TXXX:Artists'                                      'The Clash'
'TXXX:BARCODE'                                      '5099749534728'
'TXXX:CATALOGNUMBER'                                '495347 2'
'TXXX:MusicBrainz Album Artist Id'                  '8f92558c-2baa-4758-8c38-615519e9deda'
'TXXX:MusicBrainz Album Id'                         '174a5513-73d1-3c9d-a316-3c1c179e35f8'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '8f92558c-2baa-4758-8c38-615519e9deda'
'TXXX:MusicBrainz Release Group Id'                 '8d73e45e-7ca1-3cb4-ae28-6da76196c17c'
'TXXX:MusicBrainz Release Track Id'                 'ce0de630-88d6-3d05-8e0b-d62d41053744'
'TXXX:Q-HAP'                                        '3'
'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', 'new wave', 'punk']
'TXXX:lastfmtags'                                   ['punk rock', 'classic rock', 'punk', 'british', 'rock']
'TXXX:originalyear'                                 '1979'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.13 dB'
'TXXX:replaygain_track_peak'                        '0.725954'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'abeb0916-5221-480d-b188-0c328d54b5ca')

========================== row from database ==========================
                                              'id'  1421563
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/The Clash - Clash/London calling/Clash - Death Or Glory.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  236
                                           'genre'  rock-gr-punk;rock-cppex
                                        'filesize'  4825152
                                           'mtime'  1676038859
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner calling Or rock gr punk;rock cppex
                                      'tag_artist'  The Clash
                                     'tag_release'  London Calling
                                       'tag_title'  Death or Glory
                                             'bpm'  136.0
                                    'search_title'  'death':1 'glory':3 'or':2
                                   'search_artist'  'clash':2 'the':1
                                  'search_release'  'calling':2 'london':1
                                     'search_rest'  'calling':5 'cppex':13 'garage':2 'gr':8 'or':6 'punk':1,9,11 'rock':7,10,12 'stoner':4 'surf':3
                                    'search_combo'  'calling':7C,12 'clash':5B 'cppex':20 'death':1A 'garage':9 'glory':3A 'gr':15 'london':6C 'or':2A,13 'punk':8,16,18 'rock':14,17,19 'stoner':11 'surf':10 'the':4B
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', 'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']
                                      'lastfmtags'  ['punk rock', 'classic rock', 'punk', 'british', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  ['rock', 'new wave', 'punk']

============================== file details ==============================
                                           'mtime'  1676038858.724756  (2023-02-10 15:20:58)
                             'size'  4825152