======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '265'
                                          'artist'  'Moderat'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Bad Kingdom'
                                           'quals'  ("['Q-HAP-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-UNU-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['glitch', 'idm', 'electronic', 'bpitch control', 'techno']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-glitch'
                                             'bpm'  '117.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '117.6'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-glitch'
'TDRC' (Recording time)                             '2013'
'TIT2' (Title/songname/content description)         'Bad Kingdom'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Moderat'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['glitch', 'idm', 'electronic', 'bpitch control', 'techno']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-3.84 dB'
'TXXX:replaygain_track_peak'                        '0.497247'

========================== row from database ==========================
                                              'id'  771041
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Elektronikzeugs/Moderat - Bad Kingdom.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  265
                                           'genre'  electronic-experimental-glitch
                                        'filesize'  8493867
                                           'mtime'  1636136115
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Elektronikzeugs electronic experimental glitch
                                      'tag_artist'  Moderat
                                     'tag_release'  None
                                       'tag_title'  Bad Kingdom
                                             'bpm'  117.6
                                    'search_title'  'bad':1 'kingdom':2
                                   'search_artist'  'moderat':1
                                  'search_release'  
                                     'search_rest'  'electronic':2 'elektronikzeugs':1 'experimental':3 'glitch':4
                                    'search_combo'  'bad':1A 'electronic':5 'elektronikzeugs':4 'experimental':6 'glitch':7 'kingdom':2A 'moderat':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', '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-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['glitch', 'idm', 'electronic', 'bpitch control', 'techno']
                                        'tag_date'  2013
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636136115.4926286  (2021-11-05 19:15:15)
                             'size'  8493867