======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '434'
                                          'artist'  'Apoptygma Berzerk'
                                     'text_people'  ''
                                         'release'  'Until the end of the world CD2'
                                           'title'  'Until the End of the World (Ma'
                                           '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-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial', 'ebm', 'synthpop', 'electronic', 'futurepop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '137.946'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Until the end of the world CD2'
'TBPM' (BPM (beats per minute))                     '137.946'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Until the End of the World (Ma'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Apoptygma Berzerk'
'TRCK' (Track number/Position in set)               '4'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['industrial', 'ebm', 'synthpop', 'electronic', 'futurepop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-4.14 dB'
'TXXX:replaygain_track_peak'                        '0.589020'

========================== row from database ==========================
                                              'id'  1399065
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/Apoptygma Berzerk/Apoptygma Bezerk/(2002) apoptygma berzerk - until the end of the world (cdm 1) (yellow)/04 - Martin Eyerer Club Mix.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  434
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  10434974
                                           'mtime'  1620295962
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth Bezerk (2002) apoptygma berzerk until (cdm 1) (yellow) 04 Martin Eyerer Club Mix eid ebm industrial darkwave
                                      'tag_artist'  Apoptygma Berzerk
                                     'tag_release'  Until the end of the world CD2
                                       'tag_title'  Until the End of the World (Ma
                                             'bpm'  137.946
                                    'search_title'  'end':3 'ma':6,7 'of':4 'the':2 'until':1 'world':5
                                   'search_artist'  'apoptygma':1 'berzerk':2
                                  'search_release'  'cd2':6 'end':3 'of':4 'the':2 'until':1 'world':5
                                     'search_rest'  '00dwimp':1 '00ebm':2 '1':14,15 '2002':7,8 'apoptygma':9 'berzerk':10 'bezerk':6 'cdm':12,13 'club':20 'darkwave':4 'ebm':23 'eid':22 'eyerer':19 'goth':5 'industrial':3 'martin':18 'mix':21 'until':11 'yellow':16,17
                                    'search_combo'  '00dwimp':16 '00ebm':17 '1':29,30 '2002':22,23 'apoptygma':8B,24 'berzerk':9B,25 'bezerk':21 'cd2':15C 'cdm':27,28 'club':35 'darkwave':19 'ebm':38 'eid':37 'end':3A,12C 'eyerer':34 'goth':20 'industrial':18 'ma':6A,7A 'martin':33 'mix':36 'of':4A,13C 'the':2A,11C 'until':1A,10C,26 'world':5A,14C 'yellow':31,32
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-other-1', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['industrial', 'ebm', 'synthpop', 'electronic', 'futurepop']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620295961.848081  (2021-05-06 12:12:41)
                             'size'  10434974