======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '154'
                                          'artist'  'Ethel Azama'
                                     'text_people'  ''
                                         'release'  'Exotic Dreams'
                                           'title'  'Ringo Oiwake'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['easy listening', 'pop', 'smooth jazz', 'exotica', 'usa']"
                                     'discogstags'  "['pop', 'vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-japan'
                                             'bpm'  '138.892'
                                             'key'  '7A'
                                        '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)                     'Exotic Dreams'
'TBPM' (BPM (beats per minute))                     '138.892'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-japan'
'TIT2' (Title/songname/content description)         'Ringo Oiwake'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ethel Azama'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['pop', 'vocal']
'TXXX:lastfmtags'                                   ['easy listening', 'pop', 'smooth jazz', 'exotica', 'usa']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.07 dB'
'TXXX:replaygain_track_peak'                        '0.664090'

========================== row from database ==========================
                                              'id'  1391908
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Japanese/Ethel Azama - Ringo Oiwake.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  154
                                           'genre'  loc-asia-japan
                                        'filesize'  2470055
                                           'mtime'  1620586943
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Japanese loc asia japan
                                      'tag_artist'  Ethel Azama
                                     'tag_release'  Exotic Dreams
                                       'tag_title'  Ringo Oiwake
                                             'bpm'  138.892
                                    'search_title'  'oiwake':2 'ringo':1
                                   'search_artist'  'azama':2 'ethel':1
                                  'search_release'  'dreams':2 'exotic':1
                                     'search_rest'  '00asia':1 'asia':4 'japan':5 'japanese':2 'loc':3
                                    'search_combo'  '00asia':7 'asia':10 'azama':4B 'dreams':6C 'ethel':3B 'exotic':5C 'japan':11 'japanese':8 'loc':9 'oiwake':2A 'ringo':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['easy listening', 'pop', 'smooth jazz', 'exotica', 'usa']
                                        'tag_date'  
                                     'discogstags'  ['pop', 'vocal']

============================== file details ==============================
                                           'mtime'  1620586943.0391572  (2021-05-09 21:02:23)
                             'size'  2470055