======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '947'
                                          'artist'  'Harry Partch'
                                     'text_people'  ''
                                         'release'  'The Music Of Harry Partch'
                                           'title'  'Castor and Pollux'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['contemporary classical', 'earwaves', 'avant garde', 'experimental', "
 "'microtonal']")
                                     'discogstags'  "['classical', 'contemporary', 'post-modern']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '120.9'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000251 000001FA 00002ECD 00002701 00070419 00070419 000068BA 00006175 '
 '00055929 00070A8A')
'MCDI' (Music CD identifier)                        MCDI(data=b'5\x00+\x009\x006\x00+\x00A\x00D\x001\x004\x00+\x001\x00C\x002\x00D\x000\x00+\x001\x00F\x006\x00F\x006\x00+\x002\x00C\x006\x00A\x00D\x00+\x005\x003\x00E\x008\x003\x00\x00\x00')
'PRIV:AverageLevel:S\x0b\x00\x00'                   PRIV(owner='AverageLevel', data=b'S\x0b\x00\x00')
'PRIV:PeakValue:Si\x00\x00'                         PRIV(owner='PeakValue', data=b'Si\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')
'PRIV:WM/Provider:A\x00M\x00G\x00C\x00l\x00a\x00s\x00s\x00i\x00c\x00a\x00l\x00\x00\x00'  PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00C\x00l\x00a\x00s\x00s\x00i\x00c\x00a\x00l\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00W\x00 \x00 \x00 \x00 \x00 \x007\x008\x008\x005\x00;\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00W\x00 \x00 \x00 \x00 \x00 \x007\x008\x008\x005\x00;\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:!¼&l\x1cz[F¥8Í°DÀ²$'   PRIV(owner='WM/WMCollectionGroupID', data=b'!\xbc&l\x1cz[F\xa58\xcd\xb0D\xc0\xb2$')
'PRIV:WM/WMCollectionID:!¼&l\x1cz[F¥8Í°DÀ²$'        PRIV(owner='WM/WMCollectionID', data=b'!\xbc&l\x1cz[F\xa58\xcd\xb0D\xc0\xb2$')
'TALB' (Album/Movie/Show title)                     'The Music Of Harry Partch'
'TBPM' (BPM (beats per minute))                     '120.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Castor and Pollux'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '948000'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry Partch'
'TPE2' (Band/orchestra/accompaniment)               'Harry Partch'
'TPUB' (Publisher)                                  'CRI'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['classical', 'contemporary', 'post-modern']
'TXXX:lastfmtags'                                   ['contemporary classical',
 'earwaves',
 'avant garde',
 'experimental',
 'microtonal']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.62 dB'
'TXXX:replaygain_track_peak'                        '0.688025'

========================== row from database ==========================
                                              'id'  1119188
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Music Of Harry Partch/02 Castor and Pollux.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  947
                                           'genre'  electronic-experimental
                                        'filesize'  37892068
                                           'mtime'  1636917045
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 02 electronic experimental
                                      'tag_artist'  Harry Partch
                                     'tag_release'  The Music Of Harry Partch
                                       'tag_title'  Castor and Pollux
                                             'bpm'  120.9
                                    'search_title'  'and':2 'castor':1 'pollux':3
                                   'search_artist'  'harry':1 'partch':2
                                  'search_release'  'harry':4 'music':2 'of':3 'partch':5 'the':1
                                     'search_rest'  'electronic':1 'experimental':2
                                    'search_combo'  'and':2A 'castor':1A 'electronic':11 'experimental':12 'harry':4B,9C 'music':7C 'of':8C 'partch':5B,10C 'pollux':3A 'the':6C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'earwaves', 'avant garde', 'experimental', 'microtonal']
                                        'tag_date'  1989
                                     'discogstags'  ['classical', 'contemporary', 'post-modern']

============================== file details ==============================
                                           'mtime'  1636917045.42503  (2021-11-14 20:10:45)
                             'size'  37892068