======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '114'
                                          'artist'  'My Chemical Romance'
                                     'text_people'  ''
                                         'release'  'The Black Parade'
                                           'title'  'Blood'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-4', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative', 'emo', 'punk', 'rock']"
                                     'discogstags'  "['rock', 'emo', 'punk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '15'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '123'
                                             'key'  '1A'
                                        'acoustid'  '377f9c21-87bf-44af-bf2a-2f32fd3a88db'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         ' YEAR: 2006'
'PRIV:AverageLevel:{\r\x00\x00'                     PRIV(owner='AverageLevel', data=b'{\r\x00\x00')
'PRIV:PeakValue:¡y\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1y\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 \x009\x002\x009\x009\x002\x009\x00;\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x009\x002\x009\x009\x002\x009\x00;\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ÿ\x9a»C/k{Lµf¦PÙYýÛ'   PRIV(owner='WM/WMCollectionGroupID', data=b'\xff\x9a\xbbC/k{L\xb5f\xa6P\xd9Y\xfd\xdb')
'PRIV:WM/WMCollectionID:ÿ\x9a»C/k{Lµf¦PÙYýÛ'        PRIV(owner='WM/WMCollectionID', data=b'\xff\x9a\xbbC/k{L\xb5f\xa6P\xd9Y\xfd\xdb')
'PRIV:WM/WMContentID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/WMContentID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'The Black Parade'
'TBPM' (BPM (beats per minute))                     '123'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-12-06'
'TIT2' (Title/songname/content description)         'Blood'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'My Chemical Romance'
'TPE2' (Band/orchestra/accompaniment)               'My Chemical Romance'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Reprise Records'
'TRCK' (Track number/Position in set)               '14/15'
'TSO2'                                              'My Chemical Romance'
'TSOP' (Performer sort order)                       'My Chemical Romance'
'TSRC' (ISRC (international standard recording code))  'USRE10602915'
'TSSE' (Software/Hardware and settings used for encoding)  'Lame3.93'
'TXXX:ASIN'                                         'B000JLSVH4'
'TXXX:Acoustid Id'                                  '377f9c21-87bf-44af-bf2a-2f32fd3a88db'
'TXXX:BARCODE'                                      '4943674068012'
'TXXX:CATALOGNUMBER'                                'WPCR-12506'
'TXXX:MusicBrainz Album Artist Id'                  'c07f0676-9143-4217-8a9f-4c26bd636f13'
'TXXX:MusicBrainz Album Id'                         '16eb8908-7d05-48b9-af7f-cb017302482a'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'c07f0676-9143-4217-8a9f-4c26bd636f13'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'emo', 'punk']
'TXXX:lastfmtags'                                   ['alternative', 'emo', 'punk', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+8.67 dB'
'TXXX:replaygain_track_peak'                        '0.199624'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'268cb43d-de3b-4d85-9402-6e2db95d6469')

========================== row from database ==========================
                                              'id'  1418722
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/My Chemical Romance - 2006 The Black Parade/14 Secret Track.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  114
                                           'genre'  rock-gr-punk
                                        'filesize'  4895627
                                           'mtime'  1622659052
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner 2006 14 Secret Track rock gr punk
                                      'tag_artist'  My Chemical Romance
                                     'tag_release'  The Black Parade
                                       'tag_title'  Blood
                                             'bpm'  123.0
                                    'search_title'  'blood':1
                                   'search_artist'  'chemical':2 'my':1 'romance':3
                                  'search_release'  'black':2 'parade':3 'the':1
                                     'search_rest'  '2006':5 'garage':2 'gr':9 'punk':1 'rock':8 'secret':6 'stoner':4 'surf':3 'track':7
                                    'search_combo'  '2006':12 'black':6C 'blood':1A 'chemical':3B 'garage':9 'gr':16 'my':2B 'parade':7C 'punk':8 'rock':15 'romance':4B 'secret':13 'stoner':11 'surf':10 'the':5C 'track':14
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['alternative', 'emo', 'punk', 'rock']
                                        'tag_date'  2006
                                     'discogstags'  ['rock', 'emo', 'punk']

============================== file details ==============================
                                           'mtime'  1622659052.3975458  (2021-06-02 20:37:32)
                             'size'  4895627