======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '320'
                                          'artist'  'Kelpe'
                                     'text_people'  ''
                                         'release'  'Cambio Wechsel'
                                           'title'  'Gone Train Dreaming'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-2', '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'  "['electronica', 'downtempo', 'idm', 'electronic', 'trip hop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '103.961'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000581 00000420 00004DF2 00009E57 00047D49 0003FF0F 00008F3F 00008F12 '
 '0002F2E5 000096EB')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000006FC 0000000000D7C0F4 00000000 00C39978 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '12+4A3A69303E497ABC4AE6B3A75F7FDC6D+13752891'
'TALB' (Album/Movie/Show title)                     'Cambio Wechsel'
'TBPM' (BPM (beats per minute))                     '103.961'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'iTunes 8.0.2.20'
'TIT2' (Title/songname/content description)         'Gone Train Dreaming'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kelpe'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'downtempo', 'idm', 'electronic', 'trip hop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'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'                        '-0.40 dB'
'TXXX:replaygain_track_peak'                        '0.560044'

========================== row from database ==========================
                                              'id'  982703
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0calmer/Kelpe/2009 - Cambio Wechsel/12. Gone Train Dreaming.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  320
                                           'genre'  electronic
                                        'filesize'  13022458
                                           'mtime'  1636912160
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0calmer 2009 12. electronic
                                      'tag_artist'  Kelpe
                                     'tag_release'  Cambio Wechsel
                                       'tag_title'  Gone Train Dreaming
                                             'bpm'  103.961
                                    'search_title'  'dreaming':3 'gone':1 'train':2
                                   'search_artist'  'kelpe':1
                                  'search_release'  'cambio':1 'wechsel':2
                                     'search_rest'  '0calmer':1 '12':3,4 '2009':2 'electronic':5
                                    'search_combo'  '0calmer':7 '12':9,10 '2009':8 'cambio':5C 'dreaming':3A 'electronic':11 'gone':1A 'kelpe':4B 'train':2A 'wechsel':6C
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-2', '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-2', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'downtempo', 'idm', 'electronic', 'trip hop']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912159.5481505  (2021-11-14 18:49:19)
                             'size'  13022458