======================== unified (from filesystem) ========================
                                         'bitrate'  '228.677'
                                        'duration'  '233'
                                          'artist'  'Erik Satie; Reinbert de Leeuw'
                                     'text_people'  'Eric Satie'
                                         'release'  'The Early Piano Works'
                                           'title'  ('Trois Sonneries de la Rose + Croix : III. Air du Grand Prieur (Le Comte '
 'Antoine de la Rochefoucauld)')
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
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 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '17'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '99'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:Retouched and rescaled (square) image for tagging'  type PictureType.COVER_FRONT (Cover (front)) b'Retouched and rescaled (square) image for tagging'
                                     
'TALB' (Album/Movie/Show title)                     'The Early Piano Works'
'TBPM' (BPM (beats per minute))                     '99'
'TCOM' (Composer)                                   'Eric Satie'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDOR' (Original release time)                      '1989'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         ('Trois Sonneries de la Rose + Croix : III. Air du Grand Prieur (Le Comte '
 'Antoine de la Rochefoucauld)')
'TKEY' (Initial key)                                '8B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Erik Satie'
'TPE2' (Band/orchestra/accompaniment)               'Erik Satie; Reinbert de Leeuw'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'Decca Classics'
'TRCK' (Track number/Position in set)               '6/17'
'TSO2'                                              'Satie, Erik; Leeuw, Reinbert de'
'TSOP' (Performer sort order)                       'Satie, Erik'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:Artists'                                      'Erik Satie'
'TXXX:BARCODE'                                      '028946216125'
'TXXX:CATALOGNUMBER'                                '462 161-2'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '0'
'TXXX:MusicBrainz Album Artist Id'                  'e1d521ea-5b97-4981-987c-ba988b2a87d7/fe455620-6713-4861-90f9-020593a2d7ba'
'TXXX:MusicBrainz Album Id'                         '47c7e4eb-6295-4da2-92e6-de8e7db1ea29'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'e1d521ea-5b97-4981-987c-ba988b2a87d7'
'TXXX:MusicBrainz Release Group Id'                 'c39444eb-9f73-3307-b503-01eba94e0de5'
'TXXX:MusicBrainz Release Track Id'                 'd3e60535-43ff-42f9-b906-50f2422024da'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:originalyear'                                 '1989'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+13.01 dB'
'TXXX:replaygain_track_peak'                        '0.852456'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'4eb8061f-897d-428b-b53f-cdf071c29c14')

========================== row from database ==========================
                                              'id'  1214224
                                            'path'  /data/Music/Bulk/00instruments-classical/Satie, Erik/07 - Nummer 7.wma.mp3
                                         'working'  None
                                         'bitrate'  228
                                    'duration_sec'  233
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  6738349
                                           'mtime'  1621853292
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Satie, 07 Nummer 7.wma prerock classical classical instruments
                                      'tag_artist'  Erik Satie; Reinbert de Leeuw
                                     'tag_release'  The Early Piano Works
                                       'tag_title'  Trois Sonneries de la Rose + Croix : III. Air du Grand Prieur (Le Comte Antoine de la Rochefoucauld)
                                             'bpm'  99.0
                                    'search_title'  'air':9 'antoine':16 'comte':15 'croix':6 'de':3 'du':10 'grand':11 'iii':7,8 'la':4 'le':13,14 'prieur':12 'rochefoucauld':17,18 'rose':5 'sonneries':2 'trois':1
                                   'search_artist'  'de':5 'erik':1 'leeuw':6 'reinbert':4 'satie':2,3
                                  'search_release'  'early':2 'piano':3 'the':1 'works':4
                                     'search_rest'  '00instruments':1 '7':6 '7wma':8 'classical':2 'instruments':10 'nummer':5 'prerock':9 'satie':3,4 'wma':7
                                    'search_combo'  '00instruments':29 '7':34 '7wma':36 'air':9A 'antoine':16A 'classical':30 'comte':15A 'croix':6A 'de':3A,23B 'du':10A 'early':26C 'erik':19B 'grand':11A 'iii':7A,8A 'instruments':38 'la':4A 'le':13A,14A 'leeuw':24B 'nummer':33 'piano':27C 'prerock':37 'prieur':12A 'reinbert':22B 'rochefoucauld':17A,18A 'rose':5A 'satie':20B,21B,31,32 'sonneries':2A 'the':25C 'trois':1A 'wma':35 'works':28C
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853292.1826682  (2021-05-24 12:48:12)
                             'size'  6738349