======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '110'
                                          'artist'  'Pink Floyd'
                                     'text_people'  ''
                                         'release'  'The Wall (CD1)'
                                           'title'  'The Happiest Days Of Our Lives'
                                           'quals'  ("['Q-CHART-4', 'Q-PLAY-3', 'Q-GRIT-3', 'Q-HAP-2', 'Q-BUSY-3', 'q-bass-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'Q-SYN-1', 'Q-UNU-2', "
 "'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1979'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '103.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:\x8e\x0c\x00\x00'                PRIV(owner='AverageLevel', data=b'\x8e\x0c\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\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 (CD1)'
'TBPM' (BPM (beats per minute))                     '103.6'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '1979'
'TIT2' (Title/songname/content description)         'The Happiest Days Of Our Lives'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pink Floyd'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '4'
'TXXX:Q-GRIT'                                       '3'
'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:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_album_gain'                        '-0.04 dB'
'TXXX:replaygain_album_peak'                        '1.088619'
'TXXX:replaygain_track_gain'                        '-0.45 dB'
'TXXX:replaygain_track_peak'                        '1.026651'

========================== row from database ==========================
                                              'id'  1494889
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/The Wall (CD1)/CD1 - 04 - The Happiest Days Of Our Lives.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  110
                                           'genre'  rock-cppex-classic
                                        'filesize'  2212663
                                           'mtime'  1636038950
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 04 rock cppex classic
                                      'tag_artist'  Pink Floyd
                                     'tag_release'  The Wall (CD1)
                                       'tag_title'  The Happiest Days Of Our Lives
                                             'bpm'  103.6
                                    'search_title'  'days':3 'happiest':2 'lives':6 'of':4 'our':5 'the':1
                                   'search_artist'  'floyd':2 'pink':1
                                  'search_release'  'cd1':3,4 'the':1 'wall':2
                                     'search_rest'  'classic':4 'classicprogpsy':1 'cppex':3 'rock':2
                                    'search_combo'  'cd1':11C,12C 'classic':16 'classicprogpsy':13 'cppex':15 'days':3A 'floyd':8B 'happiest':2A 'lives':6A 'of':4A 'our':5A 'pink':7B 'rock':14 'the':1A,9C 'wall':10C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-3', 'Q-CHART-4', 'Q-JZFKS-1', 'Q-UNU-2', 'q-drums-4', 'Q-SYN-1', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  []
                                        'tag_date'  1979
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038949.752839  (2021-11-04 16:15:49)
                             'size'  2212663