======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '110'
                                          'artist'  'Harry MacDonough'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Goodbye Dolly Grey'
                                           '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']")
                                      'lastfmtags'  "['1900s', 'edison records', 'grammophon', '1890 1920', 'acoustic era']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1901'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '120.3'
                                             'key'  '3B'
                                        '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))                     '120.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1901'
'TIT2' (Title/songname/content description)         'Goodbye Dolly Grey'
'TKEY' (Initial key)                                '3B'
'TLEN' (Length)                                     '110000'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry MacDonough'
'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:lastfmtags'                                   ['1900s', 'edison records', 'grammophon', '1890 1920', 'acoustic era']
'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'                        '+0.81 dB'
'TXXX:replaygain_track_peak'                        '0.465226'

========================== row from database ==========================
                                              'id'  1459530
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1901/Harry MacDonough - Goodbye Dolly Grey 18-5-1901.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  110
                                           'genre'  prerock-vocal
                                        'filesize'  2256634
                                           'mtime'  1620665805
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1901 18 5 1901 prerock vocal
                                      'tag_artist'  Harry MacDonough
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Goodbye Dolly Grey
                                             'bpm'  120.3
                                    'search_title'  'dolly':2 'goodbye':1 'grey':3
                                   'search_artist'  'donough':4 'harry':1 'mac':3 'macdonough':2
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '18':7 '1901':6 '5':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'vocal':10
                                    'search_combo'  '00oldiepop':17 '18':19 '1901':18 '5':20 'album':9C 'country':16 'dolly':2A 'donough':7B 'exotica':14 'goodbye':1A 'grey':3A 'harry':4B 'jazz':13 'mac':6B 'macdonough':5B 'non':8C 'nonalbum':10C 'oldies':15 'prerock':21 'tracks':11C,12C 'vocal':22
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  3B
                                           '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'  ['1900s', 'edison records', 'grammophon', '1890 1920', 'acoustic era']
                                        'tag_date'  1901
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665805.3372283  (2021-05-10 18:56:45)
                             'size'  2256634