======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '125'
                                          'artist'  'Carol And The Blades'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Candy Store Lullaby'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '145.895'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{\x0b\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x0b\x00\x00')
'PRIV:PeakValue:!`\x00\x00'                         PRIV(owner='PeakValue', data=b'!`\x00\x00')
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TIT2' (Title/songname/content description)         'Candy Store Lullaby'
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '124969'
'TPE1' (Lead performer(s)/Soloist(s))               'Carol And The Blades'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+1.35 dB'
'TXXX:replaygain_track_peak'                        '0.531055'

========================== row from database ==========================
                                              'id'  735982
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Carol & The Blades - Candy Store Lullaby.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  125
                                           'genre'  set-th-candy
                                        'filesize'  2003237
                                           'mtime'  1620343110
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets & set th candy
                                      'tag_artist'  Carol And The Blades
                                     'tag_release'  None
                                       'tag_title'  Candy Store Lullaby
                                             'bpm'  145.895
                                    'search_title'  'candy':1 'lullaby':3 'store':2
                                   'search_artist'  'and':2 'blades':4 'carol':1 'the':3
                                  'search_release'  
                                     'search_rest'  'candy':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':6 'sweets':5 'th':7
                                    'search_combo'  'and':5B 'blades':7B 'candy':1A,15 'carol':4B 'country':11 'exotica':9 'jazz':8 'lullaby':3A 'oldies':10 'set':13 'store':2A 'sweets':12 'th':14 'the':6B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-piano-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343110.4814408  (2021-05-07 01:18:30)
                             'size'  2003237