======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '351'
                                          'artist'  'Nelson Eddy/Portia Nelson/Virginia Haskins'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  'The Surrey With the Fringe on Top'
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '96.484'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '96.484'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         'The Surrey With the Fringe on Top'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '351768'
'TPE1' (Lead performer(s)/Soloist(s))               'Nelson Eddy/Portia Nelson/Virginia Haskins'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                        '+2.68 dB'
'TXXX:replaygain_track_peak'                        '0.530719'

========================== row from database ==========================
                                              'id'  1136934
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Nelson Eddy - The Surrey With the Fringe on Top 1943.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  351
                                           'genre'  soundtrack-video
                                        'filesize'  5648466
                                           'mtime'  1620331583
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s 1943 soundtrack video
                                      'tag_artist'  Nelson Eddy/Portia Nelson/Virginia Haskins
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  The Surrey With the Fringe on Top
                                             'bpm'  96.484
                                    'search_title'  'fringe':4 'on':5 'surrey':2 'the':1 'top':6 'with':3
                                   'search_artist'  'eddy':2 'eddyportia':4 'haskins':8 'nelson':1,5 'nelsonvirginia':7 'portia':3 'virginia':6
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 '1943':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'soundtrack':9 'video':10
                                    'search_combo'  '00oldiepop':23 '1920s':24 '1930s':25 '1943':26 '20s':15C '30s':17C 'and':16C 'country':22 'eddy':8B 'eddyportia':10B 'exotica':20 'fringe':4A 'haskins':14B 'jazz':19 'nelson':7B,11B 'nelsonvirginia':13B 'oldies':21 'on':5A 'popular':18C 'portia':9B 'soundtrack':27 'surrey':2A 'the':1A 'top':6A 'video':28 'virginia':12B 'with':3A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10B
                                           '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-2', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620331582.9470253  (2021-05-06 22:06:22)
                             'size'  5648466