======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '209'
                                          'artist'  'Karoline Kruger'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Et Rom For Seg Selv (혼자만의 방 - Norway) (굿)'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', "
 "'q-other-2', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['norwegian', 'indie', 'pop', 'indie pop', 'norway']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '280'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '124.468'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '124.468'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Et Rom For Seg Selv (혼자만의 방 - Norway) (굿)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Karoline Kruger'
'TPE2' (Band/orchestra/accompaniment)               'Karoline Kruger'
'TRCK' (Track number/Position in set)               '280'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['norwegian', 'indie', 'pop', 'indie pop', 'norway']
'TXXX:other'                                        '가인아 놀자 (밥송 041집)'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.70 dB'
'TXXX:replaygain_track_peak'                        '0.463852'

========================== row from database ==========================
                                              'id'  1287622
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/가인아 놀자 (밥송 041집) - ♬ 280 Karoline Kruger - Et Rom For Seg Selv (혼자만의 방 - Norway) (굿).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  209
                                           'genre'  
                                        'filesize'  5031936
                                           'mtime'  1652398006
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 가인아 놀자 (밥송 041집) ♬ 280
                                      'tag_artist'  Karoline Kruger
                                     'tag_release'  None
                                       'tag_title'  Et Rom For Seg Selv (혼자만의 방 - Norway) (굿)
                                             'bpm'  124.468
                                    'search_title'  'et':1 'for':3 'norway':12,13 'rom':2 'seg':4 'selv':5 '굿':14,15,16,17 '방':10,11 '혼자만의':6,7,8,9
                                   'search_artist'  'karoline':1 'kruger':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '041집':15,16,17,18 '280':19 'files':5,6 'loose':3,4 'unsorted':2 '가인아':7,8 '놀자':9,10 '밥송':11,12,13,14
                                    'search_combo'  '00poprockelectronic':20 '041집':34,35,36,37 '280':38 'et':1A 'files':24,25 'for':3A 'karoline':18B 'kruger':19B 'loose':22,23 'norway':12A,13A 'rom':2A 'seg':4A 'selv':5A 'unsorted':21 '가인아':26,27 '굿':14A,15A,16A,17A '놀자':28,29 '밥송':30,31,32,33 '방':10A,11A '혼자만의':6A,7A,8A,9A
                                    'tag_tracknum'  280
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['norwegian', 'indie', 'pop', 'indie pop', 'norway']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652398005.9161768  (2022-05-13 01:26:45)
                             'size'  5031936