======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '184'
                                          'artist'  'Klaus Wunderlich'
                                     'text_people'  ''
                                         'release'  'Südamerikana'
                                           'title'  'Rumba Tambah'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'hammond organ', 'hammond heaven', 'organ', 'easy listening']"
                                     'discogstags'  "['easy listening', 'electronic', 'jazz', 'latin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'mi-earlysynth-organ'
                                             'bpm'  '104.9'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Südamerikana'
'TBPM' (BPM (beats per minute))                     '104.9'
'TCON' (Content type, a.k.a. Genre)                 'mi-earlysynth-organ'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Rumba Tambah'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Klaus Wunderlich'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['easy listening', 'electronic', 'jazz', 'latin']
'TXXX:lastfmtags'                                   ['lounge', 'hammond organ', 'hammond heaven', 'organ', 'easy listening']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.58 dB'
'TXXX:replaygain_track_peak'                        '0.596272'

========================== row from database ==========================
                                              'id'  1312888
                                            'path'  /data/Music/Bulk/00spent/0justbad/Klaus Wunderlich/klaus wunderlich-the collection vol. 3/15 Klaus Wunderlich - Rumba Tambah.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  184
                                           'genre'  mi-earlysynth-organ
                                        'filesize'  2953931
                                           'mtime'  1620528058
                                   'redo_metaread'  0
                                        'rest_str'   00spent 0justbad klaus wunderlich the collection vol. 3 15 mi earlysynth organ
                                      'tag_artist'  Klaus Wunderlich
                                     'tag_release'  Südamerikana
                                       'tag_title'  Rumba Tambah
                                             'bpm'  104.9
                                    'search_title'  'rumba':1 'tambah':2
                                   'search_artist'  'klaus':1 'wunderlich':2
                                  'search_release'  'sudamerikana':1,2
                                     'search_rest'  '00spent':1 '0justbad':2 '3':9 'collection':6 'earlysynth':11 'klaus':3 'mi':10 'organ':12 'the':5 'vol':7,8 'wunderlich':4
                                    'search_combo'  '00spent':7 '0justbad':8 '3':15 'collection':12 'earlysynth':17 'klaus':3B,9 'mi':16 'organ':18 'rumba':1A 'sudamerikana':5C,6C 'tambah':2A 'the':11 'vol':13,14 'wunderlich':4B,10
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['lounge', 'hammond organ', 'hammond heaven', 'organ', 'easy listening']
                                        'tag_date'  2000
                                     'discogstags'  ['easy listening', 'electronic', 'jazz', 'latin']

============================== file details ==============================
                                           'mtime'  1620528057.6481402  (2021-05-09 04:40:57)
                             'size'  2953931