======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '137'
                                          'artist'  'Bey Sisters'
                                     'text_people'  ''
                                         'release'  'Flip Doowop v.3'
                                           'title'  'Sugar Cookie'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '24'
                                      'tracktotal'  '30'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '108.239'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:Amadeus II 3.5:pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAACPPDAIAAAA'  PRIV(owner='Amadeus II 3.5', data=b'pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAACPPDAIAAAA')
'PRIV:AverageLevel:{\x14\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x14\x00\x00')
'PRIV:PeakValue:¡|\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1|\x00\x00')
'TALB' (Album/Movie/Show title)                     'Flip Doowop v.3'
'TBPM' (BPM (beats per minute))                     '108.239'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TIT2' (Title/songname/content description)         'Sugar Cookie'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bey Sisters'
'TRCK' (Track number/Position in set)               '24/30'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '+0.36 dB'
'TXXX:replaygain_track_peak'                        '0.485963'

========================== row from database ==========================
                                              'id'  735832
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/The Bey Sisters - Sugar Cookie 2.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  137
                                           'genre'  set-th-candy
                                        'filesize'  3313078
                                           'mtime'  1620343126
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets The 2 set th candy
                                      'tag_artist'  Bey Sisters
                                     'tag_release'  Flip Doowop v.3
                                       'tag_title'  Sugar Cookie
                                             'bpm'  108.239
                                    'search_title'  'cookie':2 'sugar':1
                                   'search_artist'  'bey':1 'sisters':2
                                  'search_release'  '3':4 'doowop':2 'flip':1 'v':3 'v3':5
                                     'search_rest'  '2':7 'candy':10 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':8 'sweets':5 'th':9 'the':6
                                    'search_combo'  '2':16 '3':8C 'bey':3B 'candy':19 'cookie':2A 'country':13 'doowop':6C 'exotica':11 'flip':5C 'jazz':10 'oldies':12 'set':17 'sisters':4B 'sugar':1A 'sweets':14 'th':18 'the':15 'v':7C 'v3':9C
                                    'tag_tracknum'  24
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343126.0597458  (2021-05-07 01:18:46)
                             'size'  3313078