======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '172'
                                          'artist'  'Death'
                                     'text_people'  'Bobby Hackney/David Hackney'
                                         'release'  '...for the Whole World to See'
                                           'title'  'Keep On Knocking'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'Q-CHART-3', "
 "'Q-MIXBEAT-2', 'q-bass-3', 'q-drums-3', 'q-other-3', 'q-piano-1', "
 "'q-vocals-2']")
                                      'lastfmtags'  ("['progressive death metal', 'metal', 'death metal', 'progressive metal', "
 "'technical death metal']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '7'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '124.0'
                                             'key'  '12B'
                                        'acoustid'  '4acaa086-a723-44a3-98cc-2ac1af0f12ac'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         (' 000003BA 000002EF 00001967 00000DF5 00006A08 0001ADC0 0000329A 0000316A '
 '00004CEA 0000E21F')
'MCDI' (Music CD identifier)                        MCDI(data=b'7\x00+\x009\x006\x00+\x003\x003\x001\x009\x00+\x006\x003\x000\x00C\x00+\x00C\x00C\x001\x004\x00+\x00F\x006\x00E\x00B\x00+\x001\x002\x008\x00E\x009\x00+\x001\x006\x00C\x00F\x00C\x00+\x001\x00D\x003\x00B\x002\x00\x00\x00')
'PRIV:AverageLevel:{\x0b\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x0b\x00\x00')
'PRIV:PeakValue:¡0\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa10\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:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:|êÃ$¢vpA\x8bGj\x01¿#Þ\x87'  PRIV(owner='WM/WMCollectionGroupID', data=b'|\xea\xc3$\xa2vpA\x8bGj\x01\xbf#\xde\x87')
'PRIV:WM/WMCollectionID:|êÃ$¢vpA\x8bGj\x01¿#Þ\x87'  PRIV(owner='WM/WMCollectionID', data=b'|\xea\xc3$\xa2vpA\x8bGj\x01\xbf#\xde\x87')
'PRIV:WM/WMContentID:îgç0¡\x07\x06O§\x99¯2\x1ci9_'  PRIV(owner='WM/WMContentID', data=b'\xeeg\xe70\xa1\x07\x06O\xa7\x99\xaf2\x1ci9_')
'TALB' (Album/Movie/Show title)                     '...for the Whole World to See'
'TBPM' (BPM (beats per minute))                     '124.0'
'TCOM' (Composer)                                   'Bobby Hackney/David Hackney'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009-02-17'
'TIT2' (Title/songname/content description)         'Keep On Knocking'
'TKEY' (Initial key)                                '12B'
'TLEN' (Length)                                     '172413'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Death'
'TPE2' (Band/orchestra/accompaniment)               'Death'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Drag City'
'TRCK' (Track number/Position in set)               '1/7'
'TSO2'                                              'Death'
'TSOP' (Performer sort order)                       'Death'
'TXXX:ASIN'                                         'B001NY71F4'
'TXXX:Acoustid Id'                                  '4acaa086-a723-44a3-98cc-2ac1af0f12ac'
'TXXX:Artists'                                      'Death'
'TXXX:BARCODE'                                      '781484038726'
'TXXX:CATALOGNUMBER'                                'DC387CD'
'TXXX:MusicBrainz Album Artist Id'                  '5bddb294-e04c-4d8f-b9bb-e3b551802ae4'
'TXXX:MusicBrainz Album Id'                         'e9a58849-fec6-493f-b664-b2f57c450687'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5bddb294-e04c-4d8f-b9bb-e3b551802ae4'
'TXXX:MusicBrainz Release Group Id'                 '8cd7285a-7bea-3119-9083-c777f6063462'
'TXXX:MusicBrainz Release Track Id'                 'af495a79-253e-324d-822a-872f999fa803'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '3'
'TXXX:Q-GRIT'                                       '2'
'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'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['progressive death metal',
 'metal',
 'death metal',
 'progressive metal',
 'technical death metal']
'TXXX:originalyear'                                 '2009'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.33 dB'
'TXXX:replaygain_track_peak'                        '0.395350'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'7b62d78d-2664-4456-9852-d957ea890d96')

========================== row from database ==========================
                                              'id'  1478281
                                            'path'  /data/Music/Bulk/00poprockelectronic/death - ...for the whole world to see (1974)/Death - 01 - Keep on Knocking.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  172
                                           'genre'  rock-cppex
                                        'filesize'  6947767
                                           'mtime'  1645789610
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic death whole world see (1974) 01 on rock cppex
                                      'tag_artist'  Death
                                     'tag_release'  ...for the Whole World to See
                                       'tag_title'  Keep On Knocking
                                             'bpm'  124.0
                                    'search_title'  'keep':1 'knocking':3 'on':2
                                   'search_artist'  'death':1
                                  'search_release'  'for':1,2 'see':7 'the':3 'to':6 'whole':4 'world':5
                                     'search_rest'  '00poprockelectronic':1 '1974':6,7 'cppex':10 'death':2 'on':8 'rock':9 'see':5 'whole':3 'world':4
                                    'search_combo'  '00poprockelectronic':12 '1974':17,18 'cppex':21 'death':4B,13 'for':5C,6C 'keep':1A 'knocking':3A 'on':2A,19 'rock':20 'see':11C,16 'the':7C 'to':10C 'whole':8C,14 'world':9C,15
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'Q-CHART-3', 'Q-MIXBEAT-2', 'q-bass-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2']
                                      'lastfmtags'  ['progressive death metal', 'metal', 'death metal', 'progressive metal', 'technical death metal']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1645789610.1317325  (2022-02-25 12:46:50)
                             'size'  6947767