======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '135'
                                          'artist'  'Jean Louis Pisuisse'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Serrez Vos Rangs (Bruant)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['1920']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1919'
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands;prerock-vocal'
                                             'bpm'  '87.2'
                                             'key'  '7B'
                                        '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)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '87.2'
'TCON' (Content type, a.k.a. Genre)                 ['loc-eur-netherlands', 'prerock-vocal']
'TDRC' (Recording time)                             '1919-08-18'
'TIT2' (Title/songname/content description)         'Serrez Vos Rangs (Bruant)'
'TKEY' (Initial key)                                '7B'
'TLEN' (Length)                                     '135000'
'TPE1' (Lead performer(s)/Soloist(s))               'Jean Louis Pisuisse'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   '1920'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.54 dB'
'TXXX:replaygain_track_peak'                        '0.562306'

========================== row from database ==========================
                                              'id'  1475336
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1919/Jean Louis Pisuisse - Serrez Vos Rangs (Bruant) 18-8-1919.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  135
                                           'genre'  loc-eur-netherlands;prerock-vocal
                                        'filesize'  2785197
                                           'mtime'  1621627090
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1919 18 8 1919 loc eur netherlands;prerock vocal
                                      'tag_artist'  Jean Louis Pisuisse
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Serrez Vos Rangs (Bruant)
                                             'bpm'  87.2
                                    'search_title'  'bruant':4,5 'rangs':3 'serrez':1 'vos':2
                                   'search_artist'  'jean':1 'louis':2 'pisuisse':3
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '18':7 '1919':6 '8':8 'country':4 'eur':10 'exotica':2 'jazz':1 'loc':9 'netherlands':11,13 'oldies':3 'prerock':12,14 'vocal':15
                                    'search_combo'  '00oldiepop':18 '18':20 '1919':19 '8':21 'album':10C 'bruant':4A,5A 'country':17 'eur':23 'exotica':15 'jazz':14 'jean':6B 'loc':22 'louis':7B 'netherlands':24,26 'non':9C 'nonalbum':11C 'oldies':16 'pisuisse':8B 'prerock':25,27 'rangs':3A 'serrez':1A 'tracks':12C,13C 'vocal':28 'vos':2A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['1920']
                                        'tag_date'  1919
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627089.985348  (2021-05-21 21:58:09)
                             'size'  2785197