======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '337'
                                          'artist'  'Air'
                                     'text_people'  ''
                                         'release'  '10,000 Hz Legend'
                                           'title'  'Caramel Prisoner'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'electronic', 'french', 'chillout', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic;electronic-shoegaze or dreampop'
                                             'bpm'  '119.546'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '10,000 Hz Legend'
'TBPM' (BPM (beats per minute))                     '119.546'
'TCON' (Content type, a.k.a. Genre)                 ['electronic', 'electronic-shoegaze or dreampop']
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Caramel Prisoner'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '337000'
'TPE1' (Lead performer(s)/Soloist(s))               'Air'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'french', 'chillout', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.89 dB'
'TXXX:replaygain_track_peak'                        '0.436579'

========================== row from database ==========================
                                              'id'  1318414
                                            'path'  /data/Music/Bulk/00poprockelectronic/Air/10,000 Hz Legend/Air - Caramel Prisoner.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  337
                                           'genre'  electronic;electronic-shoegaze or dreampop
                                        'filesize'  8105463
                                           'mtime'  1636913718
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic electronic;electronic shoegaze or dreampop
                                      'tag_artist'  Air
                                     'tag_release'  10,000 Hz Legend
                                       'tag_title'  Caramel Prisoner
                                             'bpm'  119.546
                                    'search_title'  'caramel':1 'prisoner':2
                                   'search_artist'  'air':1
                                  'search_release'  '000':2,4 '10':1,3 'hz':5 'legend':6
                                     'search_rest'  '00poprockelectronic':1 'dreampop':8 'electronic':2,3,4,5 'or':7 'shoegaze':6
                                    'search_combo'  '000':5C,7C '00poprockelectronic':10 '10':4C,6C 'air':3B 'caramel':1A 'dreampop':17 'electronic':11,12,13,14 'hz':8C 'legend':9C 'or':16 'prisoner':2A 'shoegaze':15
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'french', 'chillout', 'ambient']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636913717.832386  (2021-11-14 19:15:17)
                             'size'  8105463