======================== unified (from filesystem) ========================
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                                        'duration'  '254'
                                          'artist'  'Mu-Ziq'
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                                         'release'  'Royal Astronomy'
                                           'title'  'Scaling'
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                                      'lastfmtags'  "['idm', 'electronic', 'experimental', 'ambient', 'electronica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '14'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-experimental;set-pl-sced'
                                             'bpm'  '143'
                                             'key'  '4A'
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rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 0000095E 00000944 00002675 00001EFC 00035B77 00027117 00005416 00005FE8 '
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'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental', 'set-pl-sced']
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-07-27'
'TIT2' (Title/songname/content description)         'Scaling'
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Mu-Ziq'
'TPE2' (Band/orchestra/accompaniment)               'Mu-Ziq'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Astralwerks'
'TRCK' (Track number/Position in set)               '1/14'
'TSO2'                                              'Mu-Ziq'
'TSOP' (Performer sort order)                       'Mu-Ziq'
'TXXX:ASIN'                                         'B00000JPV7'
'TXXX:Acoustid Id'                                  'bef60339-5e0b-4f18-8c03-e381a2ec9877'
'TXXX:Artists'                                      'Mu-Ziq'
'TXXX:BARCODE'                                      '017046627528'
'TXXX:CATALOGNUMBER'                                'ASW 6275-2'
'TXXX:MusicBrainz Album Artist Id'                  'aae5b930-c59c-4509-81a1-4e65e8f424e4'
'TXXX:MusicBrainz Album Id'                         '39902da6-ddcd-3598-889e-cf6da777274f'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'aae5b930-c59c-4509-81a1-4e65e8f424e4'
'TXXX:MusicBrainz Release Group Id'                 'bc91db04-ccbd-3d8e-8cb0-9192dcc62bfd'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['idm', 'electronic', 'experimental', 'ambient', 'electronica']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
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'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'cd6021ae-4f33-43ec-80c1-f77bc16dea39')
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========================== row from database ==========================
                                              'id'  982827
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0electronic/µ-Ziq/[1999] Royal Astronomy/01 Scaling.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  254
                                           'genre'  electronic-experimental;set-pl-sced
                                        'filesize'  6122397
                                           'mtime'  1636472050
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0electronic µ [1999] 01 electronic experimental;set pl sced
                                      'tag_artist'  Mu-Ziq
                                     'tag_release'  Royal Astronomy
                                       'tag_title'  Scaling
                                             'bpm'  143.0
                                    'search_title'  'scaling':1
                                   'search_artist'  'mu':1 'muziq':3 'ziq':2
                                  'search_release'  'astronomy':2 'royal':1
                                     'search_rest'  '0electronic':1 '1999':4,5 'electronic':6 'experimental':7,9 'm':3 'pl':11 'sced':12 'set':8,10 'µ':2
                                    'search_combo'  '0electronic':7 '1999':10,11 'astronomy':6C 'electronic':12 'experimental':13,15 'm':9 'mu':2B 'muziq':4B 'pl':17 'royal':5C 'scaling':1A 'sced':18 'set':14,16 'ziq':3B 'µ':8
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['idm', 'electronic', 'experimental', 'ambient', 'electronica']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636472049.9675527  (2021-11-09 16:34:09)
                             'size'  6122397