======================== unified (from filesystem) ========================
                                         'bitrate'  '250.75'
                                        'duration'  '60'
                                          'artist'  'Dieterich Buxtehude; Ton Koopman'
                                     'text_people'  'Buxtehude'
                                         'release'  'Opera Omnia I - Harpsichord Works, Vol. 1'
                                           'title'  'Courante simble in a, BuxWV 245: Variatio 7'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '52'
                                      'tracktotal'  '57'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '107.435'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Opera Omnia I - Harpsichord Works, Vol. 1'
'TBPM' (BPM (beats per minute))                     '107.435'
'TCOM' (Composer)                                   'Buxtehude'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-10-10'
'TIT2' (Title/songname/content description)         'Courante simble in a, BuxWV 245: Variatio 7'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dieterich Buxtehude'
'TPE2' (Band/orchestra/accompaniment)               'Dieterich Buxtehude; Ton Koopman'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Challenge Classics'
'TRCK' (Track number/Position in set)               '52/57'
'TSO2'                                              'Buxtehude, Dieterich; Koopman, Ton'
'TSOP' (Performer sort order)                       'Buxtehude, Dieterich'
'TXXX:ASIN'                                         'B000G1QZQQ'
'TXXX:Artists'                                      'Dieterich Buxtehude'
'TXXX:MusicBrainz Album Artist Id'                  'f106fb52-0b54-4135-bdfd-9ccfd7e320cb/448da1b1-43a3-4239-b2c1-f7e46463439e'
'TXXX:MusicBrainz Album Id'                         '8b966f9e-afab-42ae-997a-bd543e88057f'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'f106fb52-0b54-4135-bdfd-9ccfd7e320cb'
'TXXX:MusicBrainz Release Group Id'                 '5342a9e2-3b50-44b8-8e44-de3f93a70047'
'TXXX:MusicBrainz Release Track Id'                 'bc0a9fdd-2ff9-468b-906a-40ae30cc3ffb'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:originalyear'                                 '2006'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.22 dB'
'TXXX:replaygain_track_peak'                        '0.558716'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8ab7491d-ae2d-4c56-bd4a-f2bb33c52bc7')

========================== row from database ==========================
                                              'id'  1404897
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Ton Koopman/Opera Omnia I - Buxtehude_ Harpsichord works I/52 Variation 7.mp3
                                         'working'  None
                                         'bitrate'  251
                                    'duration_sec'  60
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  1960149
                                           'mtime'  1620561961
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Buxtehude_ works 52 Variation prerock classical classical instruments
                                      'tag_artist'  Dieterich Buxtehude; Ton Koopman
                                     'tag_release'  Opera Omnia I - Harpsichord Works, Vol. 1
                                       'tag_title'  Courante simble in a, BuxWV 245: Variatio 7
                                             'bpm'  107.435
                                    'search_title'  '245':7,8 '7':10 'a':4,5 'bux':11 'buxwv':6 'courante':1 'in':3 'simble':2 'variatio':9 'wv':12
                                   'search_artist'  'buxtehude':2,3 'dieterich':1 'koopman':5 'ton':4
                                  'search_release'  '1':9 'harpsichord':4 'i':3 'omnia':2 'opera':1 'vol':7,8 'works':5,6
                                     'search_rest'  '00poprockelectronic':1 '52':7 'buxtehude':5 'classical':10 'dance':3 'generic':2 'instruments':11 'prerock':9 'trapbeat':4 'variation':8 'works':6
                                    'search_combo'  '00poprockelectronic':27 '1':26C '245':7A,8A '52':33 '7':10A 'a':4A,5A 'bux':11A 'buxtehude':14B,15B,31 'buxwv':6A 'classical':36 'courante':1A 'dance':29 'dieterich':13B 'generic':28 'harpsichord':21C 'i':20C 'in':3A 'instruments':37 'koopman':17B 'omnia':19C 'opera':18C 'prerock':35 'simble':2A 'ton':16B 'trapbeat':30 'variatio':9A 'variation':34 'vol':24C,25C 'works':22C,23C,32 'wv':12A
                                    'tag_tracknum'  52
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561961.0017292  (2021-05-09 14:06:01)
                             'size'  1960149