======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '99'
                                          'artist'  'Nina Nastasia'
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                                           'title'  'Run, All You...'
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                                      'lastfmtags'  "['indie', 'alt country', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '16'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter;set-pl-sced;ifs-songwriter-folk'
                                             'bpm'  '141.5'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Blackened Air'
'TBPM' (BPM (beats per minute))                     '141.5'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter', 'set-pl-sced', 'ifs-songwriter-folk']
'TDEN' (Encoding time)                              '2010-04-19 15:54:50'
'TDOR' (Original release time)                      '2002'
'TDRC' (Recording time)                             '2002-04-09'
'TENC' (Encoded by)                                 'LAME 3.98 (Max 0.9.1)'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['viola', 'Dylan Willemsa']])
'TIT2' (Title/songname/content description)         'Run, All You...'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '99000'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Nina Nastasia'
'TPE2' (Band/orchestra/accompaniment)               'Nina Nastasia'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Touch and Go Records'
'TRCK' (Track number/Position in set)               '1/16'
'TSO2'                                              'Nastasia, Nina'
'TSOP' (Performer sort order)                       'Nastasia, Nina'
'TSRC' (ISRC (international standard recording code))  '000000000000'
'TXXX:ASIN'                                         'B000063IVO'
'TXXX:BARCODE'                                      '036172093120'
'TXXX:CATALOGNUMBER'                                'TG231CD'
'TXXX:MusicBrainz Album Artist Id'                  '3d7b2f63-31a4-434b-91c7-58f6231bd9ad'
'TXXX:MusicBrainz Album Id'                         '2ad18822-d8b8-43c9-a9ae-b535a0e039f5'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '3d7b2f63-31a4-434b-91c7-58f6231bd9ad'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'folk rock']
'TXXX:lastfmtags'                                   ['indie', 'alt country', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.84 dB'
'TXXX:replaygain_track_peak'                        '0.715636'
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========================== row from database ==========================
                                              'id'  1375073
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Nina Nastasia - The Blackened Air/1 Run, All You....mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  99
                                           'genre'  ifs-songwriter;set-pl-sced;ifs-songwriter-folk
                                        'filesize'  3993148
                                           'mtime'  1621897522
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1 ifs songwriter;set pl sced;ifs songwriter folk
                                      'tag_artist'  Nina Nastasia
                                     'tag_release'  The Blackened Air
                                       'tag_title'  Run, All You...
                                             'bpm'  141.5
                                    'search_title'  'all':3 'run':1,2 'you':4,5
                                   'search_artist'  'nastasia':2 'nina':1
                                  'search_release'  'air':3 'blackened':2 'the':1
                                     'search_rest'  '00singer':1 '1':4 'eos':3 'folk':15 'ifs':5,12,14 'pl':10 'sced':11,13 'set':7,9 'songwriter':2,6,8
                                    'search_combo'  '00singer':11 '1':14 'air':10C 'all':3A 'blackened':9C 'eos':13 'folk':25 'ifs':15,22,24 'nastasia':7B 'nina':6B 'pl':20 'run':1A,2A 'sced':21,23 'set':17,19 'songwriter':12,16,18 'the':8C 'you':4A,5A
                                    'tag_tracknum'  1
                                      '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-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alt country', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  2002
                                     'discogstags'  ['rock', 'folk rock']

============================== file details ==============================
                                           'mtime'  1621897522.1092677  (2021-05-25 01:05:22)
                             'size'  3993148