======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '195'
                                          'artist'  'Joni Mitchell'
                                     'text_people'  ''
                                         'release'  '(Kept By) Her Own Devices'
                                           'title'  'Electricity'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
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                                      'lastfmtags'  "['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '12'
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk;ifs-songwriter-eos'
                                             'bpm'  '95.393'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:eng'                            'UK concerts from 1972 vinyl'
'TALB' (Album/Movie/Show title)                     '(Kept By) Her Own Devices'
'TBPM' (BPM (beats per minute))                     '95.393'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-folk', 'ifs-songwriter-eos']
'TDOR' (Original release time)                      '1972'
'TDRC' (Recording time)                             '1972'
'TIT2' (Title/songname/content description)         'Electricity'
'TKEY' (Initial key)                                '11A'
'TMED' (Media type)                                 'Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Joni Mitchell'
'TPE2' (Band/orchestra/accompaniment)               'Joni Mitchell'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2/12'
'TSO2'                                              'Mitchell, Joni'
'TSOP' (Performer sort order)                       'Mitchell, Joni'
'TXXX:MusicBrainz Album Artist Id'                  'a6de8ef9-b1a1-4756-97aa-481bbb8a4069'
'TXXX:MusicBrainz Album Id'                         '38b3aed3-67e8-452c-b118-c9445a83a4ed'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'bootleg'
'TXXX:MusicBrainz Album Type'                       'live'
'TXXX:MusicBrainz Artist Id'                        'a6de8ef9-b1a1-4756-97aa-481bbb8a4069'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.92 dB'
'TXXX:replaygain_track_peak'                        '0.407307'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'5b5470fe-7ab0-4040-896d-a20fe3b36112')

========================== row from database ==========================
                                              'id'  201886
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Joni Mitchell/1972 - (Kept By) Her Own Devices (recorded live in concert)/02 - electricity.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  195
                                           'genre'  ifs-songwriter-folk;ifs-songwriter-eos
                                        'filesize'  4700337
                                           'mtime'  1636400335
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1972 (recorded live in concert) 02 electricity ifs songwriter folk;ifs songwriter eos
                                      'tag_artist'  Joni Mitchell
                                     'tag_release'  (Kept By) Her Own Devices
                                       'tag_title'  Electricity
                                             'bpm'  95.393
                                    'search_title'  'electricity':1
                                   'search_artist'  'joni':1 'mitchell':2
                                  'search_release'  'by':3,4 'devices':7 'her':5 'kept':1,2 'own':6
                                     'search_rest'  '00singer':1 '1972':4 'concert':9,10 'electricity':11 'eos':3 'folk':13,15 'ifs':12,14,16 'in':8 'live':7 'recorded':5,6 'songwriter':2
                                    'search_combo'  '00singer':11 '1972':14 'by':6C,7C 'concert':19,20 'devices':10C 'electricity':1A,21 'eos':13 'folk':23,25 'her':8C 'ifs':22,24,26 'in':18 'joni':2B 'kept':4C,5C 'live':17 'mitchell':3B 'own':9C 'recorded':15,16 'songwriter':12
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'canadian', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  1972
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400334.6465092  (2021-11-08 20:38:54)
                             'size'  4700337