======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '153'
                                          'artist'  'pan ron'
                                     'text_people'  ''
                                         'release'  'cambodian rocks'
                                           'title'  'dance twist (rom jongvak twist)'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['11', 'cambodian rocks', 'khmer', 'cambodian', 'cambodia']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-cambodia'
                                             'bpm'  '126.885'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'cambodian rocks'
'TBPM' (BPM (beats per minute))                     '126.885'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-cambodia'
'TIT2' (Title/songname/content description)         'dance twist (rom jongvak twist)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'pan ron'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Mp3gain_minmax'                               '117,199'
'TXXX:Mp3gain_undo'                                 '+008,+008,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['11', 'cambodian rocks', 'khmer', 'cambodian', 'cambodia']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.68 dB'
'TXXX:replaygain_track_peak'                        '0.266368'

========================== row from database ==========================
                                              'id'  931893
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/cambodian rocks/06 pan ron - dance twist (rom jongvak twist).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  153
                                           'genre'  loc-asia-cambodia
                                        'filesize'  2463855
                                           'mtime'  1621629197
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 06 loc asia
                                      'tag_artist'  pan ron
                                     'tag_release'  cambodian rocks
                                       'tag_title'  dance twist (rom jongvak twist)
                                             'bpm'  126.885
                                    'search_title'  'dance':1 'jongvak':5 'rom':3,4 'twist':2,6
                                   'search_artist'  'pan':1 'ron':2
                                  'search_release'  'cambodian':1 'rocks':2
                                     'search_rest'  '00asia':1 'asia':3 'loc':2
                                    'search_combo'  '00asia':11 'asia':13 'cambodian':9C 'dance':1A 'jongvak':5A 'loc':12 'pan':7B 'rocks':10C 'rom':3A,4A 'ron':8B 'twist':2A,6A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['11', 'cambodian rocks', 'khmer', 'cambodian', 'cambodia']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629197.264172  (2021-05-21 22:33:17)
                             'size'  2463855