<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '241.189'
                                        'duration'  '148'
                                          'artist'  'Rats'
                                     'text_people'  'Rats'
                                         'release'  'Boobs: The Junkshop Glam Discotheque'
                                           'title'  'Turtle Dove'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['post-punk', 'new wave', 'punk', 'hard rock', 'garage']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '20'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-pop-glam'
                                             'bpm'  '91.2'
                                             'key'  '11B'
                                        'acoustid'  'd7684d77-a12a-434f-ab2b-9a134392481d'
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d75400>

'PRIV:AverageLevel:Q\x1a\x00\x00'                   PRIV(owner='AverageLevel', data=b'Q\x1a\x00\x00')
'PRIV:PeakValue:\t}\x00\x00'                        PRIV(owner='PeakValue', data=b'\t}\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\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x008\x001\x002\x006\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x008\x002\x003\x009\x000\x008\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x008\x001\x002\x006\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x008\x002\x003\x009\x000\x008\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:"×¨BuRüG\xad\x99#pMjâ5'  PRIV(owner='WM/WMCollectionGroupID', data=b'"\xd7\xa8BuR\xfcG\xad\x99#pMj\xe25')
'PRIV:WM/WMCollectionID:"×¨BuRüG\xad\x99#pMjâ5'     PRIV(owner='WM/WMCollectionID', data=b'"\xd7\xa8BuR\xfcG\xad\x99#pMj\xe25')
'PRIV:WM/WMContentID:Ë\x18\x92\x8b=,ÁN\x91Ì\x0f#\x9cW\x89è'  PRIV(owner='WM/WMContentID', data=b'\xcb\x18\x92\x8b=,\xc1N\x91\xcc\x0f#\x9cW\x89\xe8')
'TALB' (Album/Movie/Show title)                     'Boobs: The Junkshop Glam Discotheque'
'TBPM' (BPM (beats per minute))                     '91.2'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'Rats'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-glam'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005-07-12'
'TIT2' (Title/songname/content description)         'Turtle Dove'
'TKEY' (Initial key)                                '11B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Rats'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'RPM'
'TRCK' (Track number/Position in set)               '1/20'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Rats'
'TXXX:Acoustid Id'                                  'd7684d77-a12a-434f-ab2b-9a134392481d'
'TXXX:BARCODE'                                      '5013929529823'
'TXXX:CATALOGNUMBER'                                'RPM 298'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         'ba93d4be-91d3-4af4-9a97-75d8433ba188'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '43c417b8-cc7d-427b-8834-cc06cb86f1d8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['post-punk', 'new wave', 'punk', 'hard rock', 'garage']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.41 dB'
'TXXX:replaygain_track_peak'                        '0.410728'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'66bd1790-5088-4b8f-88d5-f5a838a638f6')

========================== row from database ==========================
                                              'id'  330117
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/VA - Boobs - The Junkshop Glam Discoteque/01-the_rats-turtle_dove-gti.mp3
                                         'working'  None
                                         'bitrate'  241
                                    'duration_sec'  148
                                           'genre'  rock-pop-glam
                                        'filesize'  4494660
                                           'mtime'  1622801927
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm VA Discoteque 01 the_rats turtle_dove gti rock pop glam
                                      'tag_artist'  Rats
                                     'tag_release'  Boobs: The Junkshop Glam Discotheque
                                       'tag_title'  Turtle Dove
                                             'bpm'  91.2
                                    'search_title'  'dove':2 'turtle':1
                                   'search_artist'  'rats':1
                                  'search_release'  'boobs':1,2 'discotheque':6 'glam':5 'junkshop':4 'the':3
                                     'search_rest'  'discoteque':2 'dove':6 'glam':10 'gti':7 'pop':9 'rats':4 'rock':8 'the':3 'turtle':5 'va':1
                                    'search_combo'  'boobs':4C,5C 'discoteque':11 'discotheque':9C 'dove':2A,15 'glam':8C,19 'gti':16 'junkshop':7C 'pop':18 'rats':3B,13 'rock':17 'the':6C,12 'turtle':1A,14 'va':10
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['post-punk', 'new wave', 'punk', 'hard rock', 'garage']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1622801927.2620206  (2021-06-04 12:18:47)
                             'size'  4494660