======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '191'
                                          'artist'  'Nanarland Radioblog'
                                     'text_people'  ''
                                         'release'  'Nanarland Radioblog'
                                           'title'  'Kathy Don t Go (SOS Family International)'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-2', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'soundtrack-web'
                                             'bpm'  '142.9'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Nanarland Radioblog'
'TBPM' (BPM (beats per minute))                     '142.9'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-web'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Kathy Don t Go (SOS Family International)'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nanarland Radioblog'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.96 dB'
'TXXX:replaygain_track_peak'                        '0.521232'

========================== row from database ==========================
                                              'id'  1377004
                                            'path'  /data/Music/Bulk/0soundtrack/Nanarland Radioblog/Kathy_Don_t_Go_(SOS Family International).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  191
                                           'genre'  soundtrack-web
                                        'filesize'  3831517
                                           'mtime'  1620329152
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Kathy_Don_t_Go_(SOS soundtrack web
                                      'tag_artist'  Nanarland Radioblog
                                     'tag_release'  Nanarland Radioblog
                                       'tag_title'  Kathy Don t Go (SOS Family International)
                                             'bpm'  142.9
                                    'search_title'  'don':2 'family':7 'go':4 'international':8,9 'kathy':1 'sos':5,6 't':3
                                   'search_artist'  'nanarland':1 'radioblog':2
                                  'search_release'  'nanarland':1 'radioblog':2
                                     'search_rest'  '0soundtrack':1 'don':3,8 'go':5,10 'kathy':2,7 'sos':6,11 'soundtrack':12 't':4,9 'web':13
                                    'search_combo'  '0soundtrack':14 'don':2A,16,21 'family':7A 'go':4A,18,23 'international':8A,9A 'kathy':1A,15,20 'nanarland':10B,12C 'radioblog':11B,13C 'sos':5A,6A,19,24 'soundtrack':25 't':3A,17,22 'web':26
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620329151.8638093  (2021-05-06 21:25:51)
                             'size'  3831517