======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '276'
                                          'artist'  'Vast'
                                     'text_people'  ''
                                         'release'  'visual audio sensory theatre'
                                           'title'  'flames'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'industrial', 'electronic', 'rock']"
                                     'discogstags'  "['industrial', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '128.9'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'visual audio sensory theatre'
'TBPM' (BPM (beats per minute))                     '128.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'flames'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Vast'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['industrial', 'rock']
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'industrial', 'electronic', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.68 dB'
'TXXX:replaygain_track_peak'                        '0.606894'

========================== row from database ==========================
                                              'id'  1326900
                                            'path'  /data/Music/Bulk/00poprockelectronic/Vast - 1998 Visual audio sensory theather/06-flames.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  276
                                           'genre'  electronic-unsorted
                                        'filesize'  4435299
                                           'mtime'  1641431553
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1998 Visual theather 06 electronic unsorted
                                      'tag_artist'  Vast
                                     'tag_release'  visual audio sensory theatre
                                       'tag_title'  flames
                                             'bpm'  128.9
                                    'search_title'  'flames':1
                                   'search_artist'  'vast':1
                                  'search_release'  'audio':2 'sensory':3 'theatre':4 'visual':1
                                     'search_rest'  '00poprockelectronic':1 '1998':2 'electronic':5 'theather':4 'unsorted':6 'visual':3
                                    'search_combo'  '00poprockelectronic':7 '1998':8 'audio':4C 'electronic':11 'flames':1A 'sensory':5C 'theather':10 'theatre':6C 'unsorted':12 'vast':2B 'visual':3C,9
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'industrial', 'electronic', 'rock']
                                        'tag_date'  1998
                                     'discogstags'  ['industrial', 'rock']

============================== file details ==============================
                                           'mtime'  1641431552.9059534  (2022-01-06 02:12:32)
                             'size'  4435299