======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '85'
                                          'artist'  'Nellie Melba'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  "Pale Et Blonde Dort Sous L' Eau Profonde (Thomas - Hamlet)"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-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'  '1907'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-opera'
                                             'bpm'  '144.9'
                                             'key'  '10A'
                                        '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)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '144.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-opera'
'TDRC' (Recording time)                             '1907-03-29'
'TIT2' (Title/songname/content description)         "Pale Et Blonde Dort Sous L' Eau Profonde (Thomas - Hamlet)"
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '85000'
'TPE1' (Lead performer(s)/Soloist(s))               'Nellie Melba'
'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'                        '+2.79 dB'
'TXXX:replaygain_track_peak'                        '0.449577'

========================== row from database ==========================
                                              'id'  1518467
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1907/Nellie Melba - Pale Et Blonde Dort Sous l_ Eau Profonde (Thomas - Hamlet) 29-3-1907.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  85
                                           'genre'  prerock-vocal-opera
                                        'filesize'  1764964
                                           'mtime'  1621625625
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1907 l_ 29 3 1907 prerock vocal opera
                                      'tag_artist'  Nellie Melba
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Pale Et Blonde Dort Sous L' Eau Profonde (Thomas - Hamlet)
                                             'bpm'  144.9
                                    'search_title'  'blonde':3 'dort':4 'eau':8 'et':2 'hamlet':12,13 'l':6,7 'pale':1 'profonde':9 'sous':5 'thomas':10,11
                                   'search_artist'  'melba':2 'nellie':1
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1907':6 '29':8 '3':9 'country':4 'exotica':2 'jazz':1 'l':7 'oldies':3 'opera':12 'prerock':10 'vocal':11
                                    'search_combo'  '00oldiepop':25 '1907':26 '29':28 '3':29 'album':17C 'blonde':3A 'country':24 'dort':4A 'eau':8A 'et':2A 'exotica':22 'hamlet':12A,13A 'jazz':21 'l':6A,7A,27 'melba':15B 'nellie':14B 'non':16C 'nonalbum':18C 'oldies':23 'opera':32 'pale':1A 'prerock':30 'profonde':9A 'sous':5A 'thomas':10A,11A 'tracks':19C,20C 'vocal':31
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           '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'  1907
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625624.6087055  (2021-05-21 21:33:44)
                             'size'  1764964