======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '600'
                                          'artist'  'Cezary Gapik'
                                     'text_people'  'Cezary Gapik'
                                         'release'  'Classwar Karaoke - 0021 Survey'
                                           'title'  '#0477 [Ck Re-Edit]'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dark ambient', 'isolationism', 'drone', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '124.2'
                                             'key'  '9A'
                                        '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))                     '124.2'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TCOP' (Copyright message)                          ('Creative Commons Attribution-Noncommercial-Noderivatives (Aka Music '
 'Sharing): Http: / / Creativecommons.Org / Licenses / By-Nc-Nd / 3.0 /')
'TDRC' (Recording time)                             '2013'
'TIT2' (Title/songname/content description)         '#0477 [Ck Re-Edit]'
'TKEY' (Initial key)                                '9A'
'TOPE' (Original artist(s)/performer(s))            'Cezary Gapik'
'TPE1' (Lead performer(s)/Soloist(s))               'Cezary Gapik'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '20'
'TXXX:Access Rating'                                '10'
'TXXX:Dynamic Range (DR)'                           '7'
'TXXX:Dynamic Range (R128)'                         '7.0367498397827148'
'TXXX:Peak Level (R128)'                            '-0.1 dBTP; -0.1 Left; -0.1 Right'
'TXXX:Peak Level (Sample)'                          '-0.2 dB; -0.2 Left; -0.2 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)'                          '-11.6295204162597656'
'TXXX:Volume Level (ReplayGain)'                    '-6.6295199394226074'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dark ambient', 'isolationism', 'drone', 'experimental', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.91 dB'
'TXXX:replaygain_track_peak'                        '0.291717'
'WXXX:'                                             WXXX(encoding=<Encoding.UTF16: 1>, desc='', url='http://about.me/cezarygapik')

========================== row from database ==========================
                                              'id'  1383397
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Various - Classwar Karaoke - 0021 Survey/20 - Cezary Gapik - #0477 [Ck Re-Edit].mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  600
                                           'genre'  electronic
                                        'filesize'  24077619
                                           'mtime'  1636912802
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Various 20 electronic
                                      'tag_artist'  Cezary Gapik
                                     'tag_release'  Classwar Karaoke - 0021 Survey
                                       'tag_title'  #0477 [Ck Re-Edit]
                                             'bpm'  124.2
                                    'search_title'  '0477':1,2 'ck':3,4 'edit':6 're':5 'reedit':7
                                   'search_artist'  'cezary':1 'gapik':2
                                  'search_release'  'classwar':1 'karaoke':2 'survey':3
                                     'search_rest'  '20':2 'electronic':3 'various':1
                                    'search_combo'  '0477':1A,2A '20':14 'cezary':8B 'ck':3A,4A 'classwar':10C 'edit':6A 'electronic':15 'gapik':9B 'karaoke':11C 're':5A 'reedit':7A 'survey':12C 'various':13
                                    'tag_tracknum'  20
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['dark ambient', 'isolationism', 'drone', 'experimental', 'ambient']
                                        'tag_date'  2013
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912802.3264933  (2021-11-14 19:00:02)
                             'size'  24077619