======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '325'
                                          'artist'  'Meister (마이스터)'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '05'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-PLAY-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-vocals-4', 'q-mixbeat-1', 'Q-PIANO-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '137.946'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '137.946'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         '05'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Meister (Ht$0)'
'TPE2' (Band/orchestra/accompaniment)               'Meister (마이스터)'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+9.82 dB'
'TXXX:replaygain_track_peak'                        '0.151981'

========================== row from database ==========================
                                              'id'  1291065
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Meister (마이스터) - 기억 [].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  325
                                           'genre'  
                                        'filesize'  7816340
                                           'mtime'  1652397969
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 기억 []
                                      'tag_artist'  Meister (마이스터)
                                     'tag_release'  None
                                       'tag_title'  05
                                             'bpm'  137.946
                                    'search_title'  
                                   'search_artist'  'meister':1 '마이스터':2,3,4,5
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'loose':3,4 'unsorted':2 '기억':7,8
                                    'search_combo'  '00poprockelectronic':6 'files':10,11 'loose':8,9 'meister':1B 'unsorted':7 '기억':12,13 '마이스터':2B,3B,4B,5B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-PLAY-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-4', 'q-mixbeat-1', 'Q-PIANO-2']
                                      'lastfmtags'  []
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397968.9685438  (2022-05-13 01:26:08)
                             'size'  7816340