======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '300'
                                          'artist'  'Steely Dan'
                                     'text_people'  'Donald Fagen/Walter Becker'
                                         'release'  'Countdown to Ecstasy'
                                           'title'  'King of the World'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['jazz', '70s', 'rock', 'jazz rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '8'
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '130'
                                             'key'  '8A'
                                        'acoustid'  '0bf36877-c8e6-44d7-8560-cb016ae4b70a'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'8\x00+\x009\x006\x00+\x005\x00D\x00D\x00B\x00+\x009\x005\x00E\x00C\x00+\x00F\x009\x008\x008\x00+\x001\x007\x004\x005\x00F\x00+\x001\x00D\x003\x00E\x00B\x00+\x002\x003\x009\x006\x00A\x00+\x002\x007\x00D\x001\x009\x00+\x002\x00D\x005\x000\x00C\x00\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 \x00 \x001\x008\x009\x004\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x005\x002\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x005\x002\x007\x003\x008\x007\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x001\x008\x009\x004\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x005\x002\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x005\x002\x007\x003\x008\x007\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:xDÖO&à¶I¾\x10Ö\x9b\x83\x87Í]'  PRIV(owner='WM/WMCollectionGroupID', data=b'xD\xd6O&\xe0\xb6I\xbe\x10\xd6\x9b\x83\x87\xcd]')
'PRIV:WM/WMCollectionID:xDÖO&à¶I¾\x10Ö\x9b\x83\x87Í]'  PRIV(owner='WM/WMCollectionID', data=b'xD\xd6O&\xe0\xb6I\xbe\x10\xd6\x9b\x83\x87\xcd]')
'PRIV:WM/WMContentID:õ\x91\x8d®X¯qO¼\x90ñØ\n÷\xad÷'  PRIV(owner='WM/WMContentID', data=b'\xf5\x91\x8d\xaeX\xafqO\xbc\x90\xf1\xd8\n\xf7\xad\xf7')
'TALB' (Album/Movie/Show title)                     'Countdown to Ecstasy'
'TBPM' (BPM (beats per minute))                     '130'
'TCOM' (Composer)                                   'Donald Fagen/Walter Becker'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDOR' (Original release time)                      '1973'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'King of the World'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '300200'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Steely Dan'
'TPE2' (Band/orchestra/accompaniment)               'Steely Dan'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'MCA Records'
'TRCK' (Track number/Position in set)               '8/8'
'TSO2'                                              'Steely Dan'
'TSOP' (Performer sort order)                       'Steely Dan'
'TSRC' (ISRC (international standard recording code))  'USMC17347195'
'TXXX:Acoustid Id'                                  '0bf36877-c8e6-44d7-8560-cb016ae4b70a'
'TXXX:Artists'                                      'Steely Dan'
'TXXX:CATALOGNUMBER'                                'DIDX-372/MCAD-37041'
'TXXX:MusicBrainz Album Artist Id'                  'e01c3376-15fa-40d7-b747-5f219bdefdd7'
'TXXX:MusicBrainz Album Id'                         'fe31689e-14c7-4445-8c09-316267c945b5'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'e01c3376-15fa-40d7-b747-5f219bdefdd7'
'TXXX:MusicBrainz Release Group Id'                 '33726877-dd41-301b-9f1e-498ebbadc7d8'
'TXXX:MusicBrainz Release Track Id'                 'c3cca319-8e1c-4b46-ad3e-eda83ed691ac'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['jazz', '70s', 'rock', 'jazz rock', 'classic rock']
'TXXX:originalyear'                                 '1973'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.572675'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'b6b3bf3b-6791-43de-96c1-86a5a87c4252')

========================== row from database ==========================
                                              'id'  1415197
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Steely Dan/Countdown to ecstasy/08-King Of The World.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  300
                                           'genre'  rock-cppex-classic
                                        'filesize'  7278271
                                           'mtime'  1636038847
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy ecstasy 08 Of The rock cppex classic
                                      'tag_artist'  Steely Dan
                                     'tag_release'  Countdown to Ecstasy
                                       'tag_title'  King of the World
                                             'bpm'  130.0
                                    'search_title'  'king':1 'of':2 'the':3 'world':4
                                   'search_artist'  'dan':2 'steely':1
                                  'search_release'  'countdown':1 'ecstasy':3 'to':2
                                     'search_rest'  'classic':7 'classicprogpsy':1 'cppex':6 'ecstasy':2 'of':3 'rock':5 'the':4
                                    'search_combo'  'classic':16 'classicprogpsy':10 'countdown':7C 'cppex':15 'dan':6B 'ecstasy':9C,11 'king':1A 'of':2A,12 'rock':14 'steely':5B 'the':3A,13 'to':8C 'world':4A
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jazz', '70s', 'rock', 'jazz rock', 'classic rock']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038847.276366  (2021-11-04 16:14:07)
                             'size'  7278271