======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '192'
                                          'artist'  'Atom Earth Mother'
                                     'text_people'  ''
                                         'release'  'Classwar Karaoke - 0021 Survey'
                                           'title'  'Believe in Me'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['abstract', 'electronic', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '139.5'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Classwar Karaoke - 0021 Survey'
'TBPM' (BPM (beats per minute))                     '139.5'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TCOP' (Copyright message)                          ('Attribution-Noncommercial-Sharealike: Http: / / Creativecommons.Org / '
 'Licenses / By-Nc-Sa / 3.0 /')
'TDRC' (Recording time)                             '2013'
'TIT2' (Title/songname/content description)         'Believe in Me'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Atom Earth Mother'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Access Rating'                                '10'
'TXXX:Dynamic Range (DR)'                           '8'
'TXXX:Dynamic Range (R128)'                         '5.7447400093078613'
'TXXX:Peak Level (R128)'                            '-5.9 dBTP; -5.9 Left; -6.0 Right'
'TXXX:Peak Level (Sample)'                          '-6.0 dB; -6.0 Left; -6.0 Right'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tool Name'                                    'Media Center'
'TXXX:Tool Version'                                 '20.0.131'
'TXXX:Volume Level (R128)'                          '-6.3888201713562012'
'TXXX:Volume Level (ReplayGain)'                    '-1.3888200521469116'
'TXXX:discogstags'                                  ['abstract', 'electronic', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.62 dB'
'TXXX:replaygain_track_peak'                        '0.356113'

========================== row from database ==========================
                                              'id'  1383159
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Various - Classwar Karaoke - 0021 Survey/13 - Atom Earth Mother - Believe in Me.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  192
                                           'genre'  electronic-unsorted;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  7760075
                                           'mtime'  1622758899
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Various 13 electronic unsorted;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Atom Earth Mother
                                     'tag_release'  Classwar Karaoke - 0021 Survey
                                       'tag_title'  Believe in Me
                                             'bpm'  139.5
                                    'search_title'  'believe':1 'in':2 'me':3
                                   'search_artist'  'atom':1 'earth':2 'mother':3
                                  'search_release'  'classwar':1 'karaoke':2 'survey':3
                                     'search_rest'  'electronic':2 'mor':12 'pl':7 'set':4,6,9,11 'shirleyspinoza':8,10 'unsorted':3,5 'various':1
                                    'search_combo'  'atom':4B 'believe':1A 'classwar':7C 'earth':5B 'electronic':11 'in':2A 'karaoke':8C 'me':3A 'mor':21 'mother':6B 'pl':16 'set':13,15,18,20 'shirleyspinoza':17,19 'survey':9C 'unsorted':12,14 'various':10
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  6B
                                           '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-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2013
                                     'discogstags'  ['abstract', 'electronic', 'ambient']

============================== file details ==============================
                                           'mtime'  1622758899.4233048  (2021-06-04 00:21:39)
                             'size'  7760075