======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '511'
                                          'artist'  'Krusseldorf'
                                     'text_people'  ''
                                         'release'  'Smokers Lounge'
                                           'title'  'Death Notes (Vapor)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'dub', 'idm', 'downtempo', 'ambient']"
                                     'discogstags'  "['electronic', 'downtempo']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '103.3'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'POPM:no@email'                                     POPM(email='no@email', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Smokers Lounge'
'TBPM' (BPM (beats per minute))                     '103.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2007'
'TIT1' (Content group description)                  '3'
'TIT2' (Title/songname/content description)         'Death Notes (Vapor)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Krusseldorf'
'TRCK' (Track number/Position in set)               '1'
'TXXX:DATE'                                         '2007'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'downtempo']
'TXXX:lastfmtags'                                   ['electronic', 'dub', 'idm', 'downtempo', 'ambient']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.27 dB'
'TXXX:replaygain_track_peak'                        '0.640025'

========================== row from database ==========================
                                              'id'  1304092
                                            'path'  /data/Music/Bulk/00poprockelectronic/Chronos - chillout-dub/krusseldorf - death notes (vapor).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  511
                                           'genre'  electronic
                                        'filesize'  16397032
                                           'mtime'  1636913967
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Chronos chillout dub krusseldorf death notes (vapor) electronic
                                      'tag_artist'  Krusseldorf
                                     'tag_release'  Smokers Lounge
                                       'tag_title'  Death Notes (Vapor)
                                             'bpm'  103.3
                                    'search_title'  'death':1 'notes':2 'vapor':3,4
                                   'search_artist'  'krusseldorf':1
                                  'search_release'  'lounge':2 'smokers':1
                                     'search_rest'  '00poprockelectronic':1 'chillout':3 'chronos':2 'death':6 'dub':4 'electronic':10 'krusseldorf':5 'notes':7 'vapor':8,9
                                    'search_combo'  '00poprockelectronic':8 'chillout':10 'chronos':9 'death':1A,13 'dub':11 'electronic':17 'krusseldorf':5B,12 'lounge':7C 'notes':2A,14 'smokers':6C 'vapor':3A,4A,15,16
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', '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-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'dub', 'idm', 'downtempo', 'ambient']
                                        'tag_date'  2007
                                     'discogstags'  ['electronic', 'downtempo']

============================== file details ==============================
                                           'mtime'  1636913967.226702  (2021-11-14 19:19:27)
                             'size'  16397032