======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '148'
                                          'artist'  'The Magnetic Fields'
                                     'text_people'  ''
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                                           'title'  'Grand Canyon'
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                                      'lastfmtags'  "['indie', 'indie pop', 'mellow', 'ukulele', 'beautiful']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '23'
                                            'date'  '1999'
                                        'comments'  ''
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                                             'key'  '10B'
                                        'acoustid'  'fa7077a7-2960-4849-a8b2-ac27e99490ba'
rest: ''

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

'COMM:ID3v1 Comment:eng'                            '.:.I..D..M.:.:.I..D..M.:.:..'
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'TBPM' (BPM (beats per minute))                     '144.3'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-09-07'
'TIT2' (Title/songname/content description)         'Grand Canyon'
'TKEY' (Initial key)                                '10B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Magnetic Fields'
'TPE2' (Band/orchestra/accompaniment)               'The Magnetic Fields'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Merge Records'
'TRCK' (Track number/Position in set)               '6/23'
'TSO2'                                              'Magnetic Fields, The'
'TSOP' (Performer sort order)                       'Magnetic Fields, The'
'TXXX:ASIN'                                         'B00000JY75'
'TXXX:Acoustid Id'                                  'fa7077a7-2960-4849-a8b2-ac27e99490ba'
'TXXX:BARCODE'                                      '036172946723'
'TXXX:CATALOGNUMBER'                                'MRG 167'
'TXXX:MusicBrainz Album Artist Id'                  '3ff72a59-f39d-411d-9f93-2d4a86413013'
'TXXX:MusicBrainz Album Id'                         '2a8dc3d9-380d-4f44-9036-11e3f82e27af'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '3ff72a59-f39d-411d-9f93-2d4a86413013'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'mellow', 'ukulele', 'beautiful']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.30 dB'
'TXXX:replaygain_track_peak'                        '0.365203'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'bc5647cb-c491-42a2-ab69-44e10a8ca6ac')

========================== row from database ==========================
                                              'id'  729683
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Magnetic Fields - 2000 - 69 Love Songs (Circus Records) [192k]/206 - grand canyon.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  148
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  3562038
                                           'mtime'  1636403027
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 2000 (Circus Records) [192k] 206 grand canyon ifs songwriter indie unsorted
                                      'tag_artist'  The Magnetic Fields
                                     'tag_release'  69 Love Songs, Volume 2
                                       'tag_title'  Grand Canyon
                                             'bpm'  144.3
                                    'search_title'  'canyon':2 'grand':1
                                   'search_artist'  'fields':3 'magnetic':2 'the':1
                                  'search_release'  '2':6 '69':1 'love':2 'songs':3,4 'volume':5
                                     'search_rest'  '192k':6,7 '2000':1 '206':8 'canyon':10 'circus':2,3 'grand':9 'ifs':11 'indie':13 'records':4,5 'songwriter':12 'unsorted':14
                                    'search_combo'  '192k':17,18 '2':11C '2000':12 '206':19 '69':6C 'canyon':2A,21 'circus':13,14 'fields':5B 'grand':1A,20 'ifs':22 'indie':24 'love':7C 'magnetic':4B 'records':15,16 'songs':8C,9C 'songwriter':23 'the':3B 'unsorted':25 'volume':10C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'mellow', 'ukulele', 'beautiful']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636403026.7251675  (2021-11-08 21:23:46)
                             'size'  3562038