======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '204'
                                          'artist'  'International Novelty Orchestra'
                                     'text_people'  ''
                                         'release'  'HMV B-3510'
                                           'title'  'Tap Dance Medley 21-11-1929'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['1102rh', 'spotify', 'all', '  6', ' 65t']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '131.3'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'HMV B-3510'
'TBPM' (BPM (beats per minute))                     '131.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1929'
'TIT2' (Title/songname/content description)         'Tap Dance Medley 21-11-1929'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '204000'
'TPE1' (Lead performer(s)/Soloist(s))               'International Novelty Orchestra'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['1102rh', 'spotify', 'all', '  6', ' 65t']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.92 dB'
'TXXX:replaygain_track_peak'                        '0.550166'

========================== row from database ==========================
                                              'id'  1469869
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1929/International Novelty Orchestra - Tap Dance Medley 21-11-1929.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  204
                                           'genre'  prerock-swing
                                        'filesize'  4132927
                                           'mtime'  1620559921
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock swing
                                      'tag_artist'  International Novelty Orchestra
                                     'tag_release'  HMV B-3510
                                       'tag_title'  Tap Dance Medley 21-11-1929
                                             'bpm'  131.3
                                    'search_title'  '11':5 '1929':6 '21':4 '21111929':7 'dance':2 'medley':3 'tap':1
                                   'search_artist'  'international':1 'novelty':2 'orchestra':3
                                  'search_release'  '3510':3 'b':2 'b3510':4 'hmv':1
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'swing':7
                                    'search_combo'  '00oldiepop':19 '11':5A '1929':6A '21':4A '21111929':7A '3510':13C 'b':12C 'b3510':14C 'country':18 'dance':2A 'exotica':16 'hmv':11C 'international':8B 'jazz':15 'medley':3A 'novelty':9B 'oldies':17 'orchestra':10B 'prerock':20 'swing':21 'tap':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['1102rh', 'spotify', 'all', '  6', ' 65t']
                                        'tag_date'  1929
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620559920.7010949  (2021-05-09 13:32:00)
                             'size'  4132927