======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '163'
                                          'artist'  'JEANETTE MACDONALD & NELSON EDDY'
                                     'text_people'  ''
                                         'release'  'NELSON EDDY'
                                           'title'  'San Francisco'
                                           '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-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['out of our heads', 'campy', 'female vocalist', '30s', 'vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1924'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '140.433'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'NELSON EDDY'
'TBPM' (BPM (beats per minute))                     '140.433'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1924'
'TIT2' (Title/songname/content description)         'San Francisco'
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '163039'
'TPE1' (Lead performer(s)/Soloist(s))               'JEANETTE MACDONALD & NELSON EDDY'
'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'                                   ['out of our heads', 'campy', 'female vocalist', '30s', 'vocal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+0.88 dB'
'TXXX:replaygain_track_peak'                        '0.398851'

========================== row from database ==========================
                                              'id'  1151920
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Nelson Eddy, Jeanette MacDonald - San Francisco 1924.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  163
                                           'genre'  prerock-vocal
                                        'filesize'  2635245
                                           'mtime'  1620666356
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular Nelson Eddy, Jeanette MacDonald 1924 prerock vocal
                                      'tag_artist'  JEANETTE MACDONALD & NELSON EDDY
                                     'tag_release'  NELSON EDDY
                                       'tag_title'  San Francisco
                                             'bpm'  140.433
                                    'search_title'  'francisco':2 'san':1
                                   'search_artist'  'eddy':4 'jeanette':1 'macdonald':2 'nelson':3
                                  'search_release'  'eddy':2 'nelson':1
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1924':15 '1930s':8 'and':7 'country':4 'donald':19 'eddy':11,12 'exotica':2 'jazz':1 'jeanette':13 'mac':18 'macdonald':14 'nelson':10 'oldies':3 'popular':9 'prerock':16 'vocal':17
                                    'search_combo'  '00oldiepop':13 '1920s':14 '1924':23 '1930s':16 'and':15 'country':12 'donald':27 'eddy':6B,8C,19,20 'exotica':10 'francisco':2A 'jazz':9 'jeanette':3B,21 'mac':26 'macdonald':4B,22 'nelson':5B,7C,18 'oldies':11 'popular':17 'prerock':24 'san':1A 'vocal':25
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           '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-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['out of our heads', 'campy', 'female vocalist', '30s', 'vocal']
                                        'tag_date'  1924
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666356.3711033  (2021-05-10 19:05:56)
                             'size'  2635245