======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '138'
                                          'artist'  'John Young & Frederick Wheeler'
                                     'text_people'  ''
                                         'release'  'Indestructible  1329'
                                           'title'  'Let The Lower Lights Be Burning 1906 Indestructible'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1906'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '142.7'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TALB' (Album/Movie/Show title)                     'Indestructible  1329'
'TBPM' (BPM (beats per minute))                     '142.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1906'
'TIT2' (Title/songname/content description)         'Let The Lower Lights Be Burning 1906 Indestructible'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'John Young & Frederick Wheeler'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.56 dB'
'TXXX:replaygain_track_peak'                        '0.463226'

========================== row from database ==========================
                                              'id'  1466432
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1906/John Young & Frederick Wheeler - Let The Lower Lights Be Burning 1906 Indestructible.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  138
                                           'genre'  prerock-vocal
                                        'filesize'  2821143
                                           'mtime'  1620665919
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock vocal
                                      'tag_artist'  John Young & Frederick Wheeler
                                     'tag_release'  Indestructible  1329
                                       'tag_title'  Let The Lower Lights Be Burning 1906 Indestructible
                                             'bpm'  142.7
                                    'search_title'  '1906':7 'be':5 'burning':6 'indestructible':8 'let':1 'lights':4 'lower':3 'the':2
                                   'search_artist'  'frederick':3 'john':1 'wheeler':4 'young':2
                                  'search_release'  '1329':2 'indestructible':1
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'vocal':7
                                    'search_combo'  '00oldiepop':19 '1329':14C '1906':7A 'be':5A 'burning':6A 'country':18 'exotica':16 'frederick':11B 'indestructible':8A,13C 'jazz':15 'john':9B 'let':1A 'lights':4A 'lower':3A 'oldies':17 'prerock':20 'the':2A 'vocal':21 'wheeler':12B 'young':10B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1906
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665918.8471923  (2021-05-10 18:58:38)
                             'size'  2821143