======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '95'
                                          'artist'  'The Moldy Peaches'
                                     'text_people'  ''
                                         'release'  'The Moldy Peaches'
                                           'title'  'What Went Wrong'
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 "'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
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                                      'lastfmtags'  "['indie', 'lo fi', 'alternative', 'anti folk', 'antifolk']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '19'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '123'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '123'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001-05-07'
'TIT2' (Title/songname/content description)         'What Went Wrong'
'TKEY' (Initial key)                                '12A'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'The Moldy Peaches'
'TPE2' (Band/orchestra/accompaniment)               'The Moldy Peaches'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Rough Trade'
'TRCK' (Track number/Position in set)               '3/19'
'TSO2'                                              'Moldy Peaches, The'
'TSOP' (Performer sort order)                       'Moldy Peaches, The'
'TXXX:Artists'                                      'The Moldy Peaches'
'TXXX:CATALOGNUMBER'                                'RTRADELP014'
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'TXXX:MusicBrainz Album Id'                         '958fe4e0-71c8-384e-8126-d5163421deba'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '6830e150-6233-4255-ab97-6e2e38759637'
'TXXX:MusicBrainz Release Group Id'                 '1d3acacc-0961-3e87-9a05-e71386c3821d'
'TXXX:MusicBrainz Release Track Id'                 '204e9edc-cfa0-301f-924b-2d2fc8a9b025'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'lo fi', 'alternative', 'anti folk', 'antifolk']
'TXXX:originalyear'                                 '2001'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.14 dB'
'TXXX:replaygain_track_peak'                        '0.318684'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'784dd7fd-c673-4d91-9f2e-bc91aa40475f')

========================== row from database ==========================
                                              'id'  312905
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Moldy Peaches/The Moldy Peaches/03 What Went Wrong.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  95
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  2308989
                                           'mtime'  1639517522
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 03 ifs songwriter eos
                                      'tag_artist'  The Moldy Peaches
                                     'tag_release'  The Moldy Peaches
                                       'tag_title'  What Went Wrong
                                             'bpm'  123.0
                                    'search_title'  'went':2 'what':1 'wrong':3
                                   'search_artist'  'moldy':2 'peaches':3 'the':1
                                  'search_release'  'moldy':2 'peaches':3 'the':1
                                     'search_rest'  '00singer':1 'eos':3 'ifs':4 'songwriter':2
                                    'search_combo'  '00singer':10 'eos':12 'ifs':13 'moldy':5B,8C 'peaches':6B,9C 'songwriter':11 'the':4B,7C 'went':2A 'what':1A 'wrong':3A
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'lo fi', 'alternative', 'anti folk', 'antifolk']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1639517522.2700136  (2021-12-14 22:32:02)
                             'size'  2308989