======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '335'
                                          'artist'  'Ludwig van Beethoven'
                                     'text_people'  ''
                                         'release'  'Nodame Cantabile Best 100 Collection Box'
                                           'title'  'Symphony No. 3 in E-flat major, Op. 55 "Eroica": III. Scherzo. Allegro vivace'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'composers', 'romantic', 'classical', 'classic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '7'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '122'
                                             'key'  '5B'
                                        'acoustid'  '428eaa6b-3a6e-44b4-99cd-36c18a251cad'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'TALB' (Album/Movie/Show title)                     'Nodame Cantabile Best 100 Collection Box'
'TBPM' (BPM (beats per minute))                     '122'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2007-01-01'
'TIT2' (Title/songname/content description)         'Symphony No. 3 in E-flat major, Op. 55 "Eroica": III. Scherzo. Allegro vivace'
'TKEY' (Initial key)                                '5B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Ludwig van Beethoven'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '4/8'
'TPUB' (Publisher)                                  'Sony Music Japan International Inc.'
'TRCK' (Track number/Position in set)               '3/7'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Beethoven, Ludwig van'
'TXXX:ASIN'                                         'B000JS77FY'
'TXXX:Acoustid Id'                                  '428eaa6b-3a6e-44b4-99cd-36c18a251cad'
'TXXX:Artists'                                      'Ludwig van Beethoven'
'TXXX:BARCODE'                                      '4547366028485'
'TXXX:CATALOGNUMBER'                                'SICC-631'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '07ee3d9d-b7ce-4bf3-a252-9d3819d2d9ac'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'pseudo-release'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '1f9df192-a621-4f54-8850-2c5373b7eac9'
'TXXX:MusicBrainz Release Group Id'                 'b0ae25a4-8df2-4628-82d2-2cd79932859f'
'TXXX:MusicBrainz Release Track Id'                 '6647fd21-ce12-3b0a-a650-6a824d95ea05'
'TXXX:Q-HAP'                                        '2'
'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'                                   ['instrumental', 'composers', 'romantic', 'classical', 'classic']
'TXXX:originalyear'                                 '2006'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.10 dB'
'TXXX:replaygain_track_peak'                        '0.733676'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'b97d4804-d809-44c3-94a7-b877f8c14c10')

========================== row from database ==========================
                                              'id'  1518786
                                            'path'  /data/Music/Bulk/0soundtrack/Nodame/Nodame Cantabile Best 100 - Disc 4/4-03 Symphony #3 in E-flat major, Op.55 _Eroica_ - 3rd Movement.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  335
                                           'genre'  soundtrack-video
                                        'filesize'  8126959
                                           'mtime'  1638555467
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Disc 4 4 03 #3 Op.55 _Eroica_ 3rd Movement soundtrack video
                                      'tag_artist'  Ludwig van Beethoven
                                     'tag_release'  Nodame Cantabile Best 100 Collection Box
                                       'tag_title'  Symphony No. 3 in E-flat major, Op. 55 "Eroica": III. Scherzo. Allegro vivace
                                             'bpm'  122.0
                                    'search_title'  '3':4 '55':13 'allegro':20 'e':6 'eflat':8 'eroica':14,15 'flat':7 'iii':16,17 'in':5 'major':9,10 'no':2,3 'op':11,12 'scherzo':18,19 'symphony':1 'vivace':21
                                   'search_artist'  'beethoven':3 'ludwig':1 'van':2
                                  'search_release'  '100':4 'best':3 'box':6 'cantabile':2 'collection':5 'nodame':1
                                     'search_rest'  '0soundtrack':1 '3':4,5 '3rd':10 '4':3 '55':7 'disc':2 'eroica':9 'movement':11 'op':6 'op55':8 'soundtrack':12 'video':13
                                    'search_combo'  '0soundtrack':31 '100':28C '3':4A,34,35 '3rd':40 '4':33 '55':13A,37 'allegro':20A 'beethoven':24B 'best':27C 'box':30C 'cantabile':26C 'collection':29C 'disc':32 'e':6A 'eflat':8A 'eroica':14A,15A,39 'flat':7A 'iii':16A,17A 'in':5A 'ludwig':22B 'major':9A,10A 'movement':41 'no':2A,3A 'nodame':25C 'op':11A,12A,36 'op55':38 'scherzo':18A,19A 'soundtrack':42 'symphony':1A 'van':23B 'video':43 'vivace':21A
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'composers', 'romantic', 'classical', 'classic']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638555467.2355142  (2021-12-03 19:17:47)
                             'size'  8126959