======================== unified (from filesystem) ========================
                                         'bitrate'  '198.268'
                                        'duration'  '230'
                                          'artist'  'The Clash'
                                     'text_people'  'Joe Strummer'
                                         'release'  'London Calling'
                                           'title'  'Lost in the Supermarket'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk rock', 'classic rock', 'punk', 'british', 'rock']"
                                     'discogstags'  "['rock', 'new wave', 'punk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '19'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk;rock-cppex'
                                             'bpm'  '128'
                                             'key'  '8A'
                                        'acoustid'  '6c52f03f-bec3-4cac-bfde-4acf70cb059e'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'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')
'TALB' (Album/Movie/Show title)                     'London Calling'
'TBPM' (BPM (beats per minute))                     '128'
'TCOM' (Composer)                                   'Joe Strummer'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-punk', 'rock-cppex']
'TDOR' (Original release time)                      '1979'
'TDRC' (Recording time)                             '1999-10-01'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['engineer', 'Bill Price'], ['producer', 'Guy Stevens'], ['vocals', 'Paul Simonon'], ['vocals', 'Joe Strummer'], ['guitar and piano', 'Mick Jones'], ['guitar and piano', 'Joe Strummer'], ['bass guitar', 'Paul Simonon'], ['membranophone', 'Topper Headon']])
'TIT2' (Title/songname/content description)         'Lost in the Supermarket'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Clash'
'TPE2' (Band/orchestra/accompaniment)               'The Clash'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Columbia'
'TRCK' (Track number/Position in set)               '8/19'
'TSO2'                                              'Clash, The'
'TSOP' (Performer sort order)                       'Clash, The'
'TSRC' (ISRC (international standard recording code))  'GBARL1200687/GBBBN7902024'
'TXXX:ASIN'                                         'B00002MVQO'
'TXXX:Acoustid Id'                                  '6c52f03f-bec3-4cac-bfde-4acf70cb059e'
'TXXX:Artists'                                      'The Clash'
'TXXX:BARCODE'                                      '5099749534728'
'TXXX:CATALOGNUMBER'                                '495347 2'
'TXXX:MusicBrainz Album Artist Id'                  '8f92558c-2baa-4758-8c38-615519e9deda'
'TXXX:MusicBrainz Album Id'                         '174a5513-73d1-3c9d-a316-3c1c179e35f8'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '8f92558c-2baa-4758-8c38-615519e9deda'
'TXXX:MusicBrainz Release Group Id'                 '8d73e45e-7ca1-3cb4-ae28-6da76196c17c'
'TXXX:MusicBrainz Release Track Id'                 '775b023e-a776-3dce-964b-190f0af104db'
'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', 'new wave', 'punk']
'TXXX:lastfmtags'                                   ['punk rock', 'classic rock', 'punk', 'british', 'rock']
'TXXX:mood'                                         'Not acoustic/Relaxed/Happy/Party/Not aggressive/Electronic/Not sad'
'TXXX:originalyear'                                 '1979'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.78 dB'
'TXXX:replaygain_track_peak'                        '0.715687'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'93a46b67-3856-46eb-a0bb-377643b2f58d')

========================== row from database ==========================
                                              'id'  1420988
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/The Clash - london calling/08 lost in the supermarket.mp3
                                         'working'  None
                                         'bitrate'  198
                                    'duration_sec'  230
                                           'genre'  rock-gr-punk;rock-cppex
                                        'filesize'  5801218
                                           'mtime'  1676038864
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner london calling 08 lost supermarket rock gr punk;rock cppex
                                      'tag_artist'  The Clash
                                     'tag_release'  London Calling
                                       'tag_title'  Lost in the Supermarket
                                             'bpm'  128.0
                                    'search_title'  'in':2 'lost':1 'supermarket':4 'the':3
                                   'search_artist'  'clash':2 'the':1
                                  'search_release'  'calling':2 'london':1
                                     'search_rest'  'calling':6 'cppex':15 'garage':2 'gr':10 'london':5 'lost':7 'punk':1,11,13 'rock':9,12,14 'stoner':4 'supermarket':8 'surf':3
                                    'search_combo'  'calling':8C,14 'clash':6B 'cppex':23 'garage':10 'gr':18 'in':2A 'london':7C,13 'lost':1A,15 'punk':9,19,21 'rock':17,20,22 'stoner':12 'supermarket':4A,16 'surf':11 'the':3A,5B
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', 'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']
                                      'lastfmtags'  ['punk rock', 'classic rock', 'punk', 'british', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  ['rock', 'new wave', 'punk']

============================== file details ==============================
                                           'mtime'  1676038863.5790153  (2023-02-10 15:21:03)
                             'size'  5801218