======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '184'
                                          'artist'  'Gracie Fields'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  "You're Driving Me Crazy 1931"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', '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'  "['jazz', 'female vocalists', 'british', 'oldies', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1931'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-female'
                                             'bpm'  '118.567'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:×\x0e\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xd7\x0e\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '118.567'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-female'
'TDRC' (Recording time)                             '1931'
'TIT2' (Title/songname/content description)         "You're Driving Me Crazy 1931"
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gracie Fields'
'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'                                   ['jazz', 'female vocalists', 'british', 'oldies', 'easy listening']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'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'                        '+2.25 dB'
'TXXX:replaygain_track_peak'                        '0.603336'

========================== row from database ==========================
                                              'id'  1508514
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Gracie Fields - You_re Driving Me Crazy 1931.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  184
                                           'genre'  prerock-vocal-female
                                        'filesize'  2969600
                                           'mtime'  1621625689
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s You_re prerock vocal female
                                      'tag_artist'  Gracie Fields
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  You're Driving Me Crazy 1931
                                             'bpm'  118.567
                                    'search_title'  '1931':7 'crazy':6 'driving':4 'me':5 're':2 'you':1 'youre':3
                                   'search_artist'  'fields':2 'gracie':1
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'country':4 'exotica':2 'female':12 'jazz':1 'oldies':3 'prerock':10 're':9 'vocal':11 'you':8
                                    'search_combo'  '00oldiepop':18 '1920s':19 '1930s':20 '1931':7A '20s':10C '30s':12C 'and':11C 'country':17 'crazy':6A 'driving':4A 'exotica':15 'female':25 'fields':9B 'gracie':8B 'jazz':14 'me':5A 'oldies':16 'popular':13C 'prerock':23 're':2A,22 'vocal':24 'you':1A,21 'youre':3A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5A
                                           '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-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'female vocalists', 'british', 'oldies', 'easy listening']
                                        'tag_date'  1931
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625689.290388  (2021-05-21 21:34:49)
                             'size'  2969600