======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '204'
                                          'artist'  'Pink Floyd'
                                     'text_people'  ''
                                         'release'  'The Wall (CD2)'
                                           'title'  'Nobody Home'
                                           'quals'  ("['Q-HAP-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-3', 'Q-CHART-4', "
 "'q-drums-1', 'q-other-3', 'q-piano-2', 'q-vocals-3', 'Q-SYN-1', 'Q-UNU-2', "
 "'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  ("['progressive rock', 'classic rock', 'psychedelic rock', 'rock', "
 "'psychedelic']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '106.5'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:ü\x07\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xfc\x07\x00\x00')
'PRIV:PeakValue:\x99N\x00\x00'                      PRIV(owner='PeakValue', data=b'\x99N\x00\x00')
'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)                     'The Wall (CD2)'
'TBPM' (BPM (beats per minute))                     '106.5'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '1979'
'TIT2' (Title/songname/content description)         'Nobody Home'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Pink Floyd'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '4'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['progressive rock', 'classic rock', 'psychedelic rock', 'rock', 'psychedelic']
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_album_gain'                        '-1.36 dB'
'TXXX:replaygain_album_peak'                        '1.147707'
'TXXX:replaygain_track_gain'                        '+3.24 dB'
'TXXX:replaygain_track_peak'                        '0.614080'

========================== row from database ==========================
                                              'id'  1494946
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/The Wall (CD2)/CD2 - 03 - Nobody Home.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  204
                                           'genre'  rock-cppex-classic
                                        'filesize'  4093464
                                           'mtime'  1636038956
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 03 rock cppex classic
                                      'tag_artist'  Pink Floyd
                                     'tag_release'  The Wall (CD2)
                                       'tag_title'  Nobody Home
                                             'bpm'  106.5
                                    'search_title'  'home':2 'nobody':1
                                   'search_artist'  'floyd':2 'pink':1
                                  'search_release'  'cd2':3,4 'the':1 'wall':2
                                     'search_rest'  'classic':4 'classicprogpsy':1 'cppex':3 'rock':2
                                    'search_combo'  'cd2':7C,8C 'classic':12 'classicprogpsy':9 'cppex':11 'floyd':4B 'home':2A 'nobody':1A 'pink':3B 'rock':10 'the':5C 'wall':6C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-2', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-CHART-4', 'Q-JZFKS-1', 'Q-UNU-2', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  ['progressive rock', 'classic rock', 'psychedelic rock', 'rock', 'psychedelic']
                                        'tag_date'  1979
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038956.0261824  (2021-11-04 16:15:56)
                             'size'  4093464