======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '330'
                                          'artist'  'Tina Turner'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Disco Inferno'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'female vocalists', 'soul', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '130.230'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '130.230'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Disco Inferno'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tina Turner'
'TXXX:Mp3gain_minmax'                               '103,182'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'female vocalists', 'soul', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.42 dB'
'TXXX:replaygain_track_peak'                        '0.565964'

========================== row from database ==========================
                                              'id'  1313434
                                            'path'  /data/Music/Bulk/00poprockelectronic/Tina Turner/Tina Turner_/Tina Turner - Disco Inferno.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  330
                                           'genre'  rock-pop
                                        'filesize'  5296271
                                           'mtime'  1678464060
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Turner_ rock pop
                                      'tag_artist'  Tina Turner
                                     'tag_release'  None
                                       'tag_title'  Disco Inferno
                                             'bpm'  130.23
                                    'search_title'  'disco':1 'inferno':2
                                   'search_artist'  'tina':1 'turner':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'pop':4 'rock':3 'turner':2
                                    'search_combo'  '00poprockelectronic':5 'disco':1A 'inferno':2A 'pop':8 'rock':7 'tina':3B 'turner':4B,6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-3']
                                      'lastfmtags'  ['80s', 'female vocalists', 'soul', 'pop', 'rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678464060.200266  (2023-03-10 17:01:00)
                             'size'  5296271