======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '230'
                                          'artist'  'Nitzer Ebb'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Warsaw Ghetto (Radio Edit)'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '111.886'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '111.886'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Warsaw Ghetto (Radio Edit)'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nitzer Ebb'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'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'                        '0.949854'

========================== row from database ==========================
                                              'id'  1400012
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/Nitzer Ebb/so bright so strong/Nitzer ebb - 09 - Warsaw Ghetto (Radio Edit).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  230
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  5537305
                                           'mtime'  1620296046
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth so bright so strong ebb 09 eid ebm or industrial or darkwave
                                      'tag_artist'  Nitzer Ebb
                                     'tag_release'  None
                                       'tag_title'  Warsaw Ghetto (Radio Edit)
                                             'bpm'  111.886
                                    'search_title'  'edit':5,6 'ghetto':2 'radio':3,4 'warsaw':1
                                   'search_artist'  'ebb':2 'nitzer':1
                                  'search_release'  
                                     'search_rest'  '00dwimp':1 '00ebm':2 'bright':7 'darkwave':4 'ebb':9 'ebm':11 'eid':10 'goth':5 'industrial':3 'or':12 'so':6 'strong':8
                                    'search_combo'  '00dwimp':9 '00ebm':10 'bright':15 'darkwave':12 'ebb':8B,17 'ebm':19 'edit':5A,6A 'eid':18 'ghetto':2A 'goth':13 'industrial':11 'nitzer':7B 'or':20 'radio':3A,4A 'so':14 'strong':16 'warsaw':1A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  []
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620296046.3357742  (2021-05-06 12:14:06)
                             'size'  5537305