======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '182'
                                          'artist'  'Nora Bayes'
                                     'text_people'  ''
                                         'release'  'Victor 45105'
                                           'title'  'When John McCormack Sings A Song'
                                           '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-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['vaudeville', '20s', 'female vocalists', 'all', '10s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1916'
                                        'comments'  ''
                                           'genre'  'prerock-vaudeville'
                                             'bpm'  '143.9'
                                             'key'  '11A'
                                        '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)                     'Victor 45105'
'TBPM' (BPM (beats per minute))                     '143.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vaudeville'
'TDRC' (Recording time)                             '1916-10-27'
'TIT2' (Title/songname/content description)         'When John McCormack Sings A Song'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '182000'
'TPE1' (Lead performer(s)/Soloist(s))               'Nora Bayes'
'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'                                   ['vaudeville', '20s', 'female vocalists', 'all', '10s']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.76 dB'
'TXXX:replaygain_track_peak'                        '0.656951'

========================== row from database ==========================
                                              'id'  1469771
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1916/Nora Bayes - When John McCormack Sings A Song 27-10-1916.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  182
                                           'genre'  prerock-vaudeville
                                        'filesize'  3687259
                                           'mtime'  1620666255
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1916 27 1916 prerock vaudeville
                                      'tag_artist'  Nora Bayes
                                     'tag_release'  Victor 45105
                                       'tag_title'  When John McCormack Sings A Song
                                             'bpm'  143.9
                                    'search_title'  'a':5 'cormack':8 'john':2 'mc':7 'mccormack':3 'sings':4 'song':6 'when':1
                                   'search_artist'  'bayes':2 'nora':1
                                  'search_release'  '45105':2 'victor':1
                                     'search_rest'  '00oldiepop':5 '1916':6 '27':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'vaudeville':9
                                    'search_combo'  '00oldiepop':17 '1916':18 '27':19 '45105':12C 'a':5A 'bayes':10B 'cormack':8A 'country':16 'exotica':14 'jazz':13 'john':2A 'mc':7A 'mccormack':3A 'nora':9B 'oldies':15 'prerock':20 'sings':4A 'song':6A 'vaudeville':21 'victor':11C 'when':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11A
                                           '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['vaudeville', '20s', 'female vocalists', 'all', '10s']
                                        'tag_date'  1916
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666255.1423726  (2021-05-10 19:04:15)
                             'size'  3687259