======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '194'
                                          'artist'  'Voltaire'
                                     'text_people'  ''
                                         'release'  'Banned on Vulcan'
                                           'title'  "Worf's Revenge (Klingon Rap)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dark cabaret', 'alternative', 'gothic', 'folk', 'darkwave']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'entertaining-unsorted'
                                             'bpm'  '102.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:thumbnail'                                    type PictureType.COVER_FRONT (Cover (front)) b'thumbnail'
                                     
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'PRIV:WM/Provider:U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00'  PRIV(owner='WM/Provider', data=b'U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x91\xad{\x0bwÁ`O\x88\x8b&%»ñ^¾'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x91\xad{\x0bw\xc1`O\x88\x8b&%\xbb\xf1^\xbe')
'PRIV:WM/WMCollectionID:\x91\xad{\x0bwÁ`O\x88\x8b&%»ñ^¾'  PRIV(owner='WM/WMCollectionID', data=b'\x91\xad{\x0bw\xc1`O\x88\x8b&%\xbb\xf1^\xbe')
'PRIV:WM/WMContentID:Ä*ÒQs©ZG\x95[¡\x87b\x02\x12P'  PRIV(owner='WM/WMContentID', data=b'\xc4*\xd2Qs\xa9ZG\x95[\xa1\x87b\x02\x12P')
'TALB' (Album/Movie/Show title)                     'Banned on Vulcan'
'TBPM' (BPM (beats per minute))                     '102.1'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-unsorted'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         "Worf's Revenge (Klingon Rap)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Voltaire'
'TPE2' (Band/orchestra/accompaniment)               'Voltaire'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['dark cabaret', 'alternative', 'gothic', 'folk', 'darkwave']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                        '-0.47 dB'
'TXXX:replaygain_track_peak'                        '0.809024'

========================== row from database ==========================
                                              'id'  1507366
                                            'path'  /data/Music/Bulk/00spent/Banned on Vulcan/01 - Worf_s Revenge (Klingon Rap).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  194
                                           'genre'  entertaining-unsorted
                                        'filesize'  3123754
                                           'mtime'  1620647230
                                   'redo_metaread'  0
                                        'rest_str'   00spent 01 Worf_s entertaining unsorted
                                      'tag_artist'  Voltaire
                                     'tag_release'  Banned on Vulcan
                                       'tag_title'  Worf's Revenge (Klingon Rap)
                                             'bpm'  102.1
                                    'search_title'  'klingon':5,6 'rap':7,8 'revenge':4 's':2 'worf':1 'worfs':3
                                   'search_artist'  'voltaire':1
                                  'search_release'  'banned':1 'on':2 'vulcan':3
                                     'search_rest'  '00spent':1 'entertaining':4 's':3 'unsorted':5 'worf':2
                                    'search_combo'  '00spent':13 'banned':10C 'entertaining':16 'klingon':5A,6A 'on':11C 'rap':7A,8A 'revenge':4A 's':2A,15 'unsorted':17 'voltaire':9B 'vulcan':12C 'worf':1A,14 'worfs':3A
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['dark cabaret', 'alternative', 'gothic', 'folk', 'darkwave']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620647230.4938152  (2021-05-10 13:47:10)
                             'size'  3123754