======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '286'
                                          'artist'  'Walter Carlos'
                                     'text_people'  'Johann Sebastian Bach'
                                         'release'  'The Well-Tempered Synthesizer'
                                           'title'  'Brandenburg Concerto No. 4, BWV 1049: III. Presto'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
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                                      'lastfmtags'  "['electronic', 'soundtrack', 'classical', 'earwaves', 'experimental']"
                                     'discogstags'  "['electronic', 'modern classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '13'
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early;mi-earlysynth'
                                             'bpm'  '109.2'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Well-Tempered Synthesizer'
'TBPM' (BPM (beats per minute))                     '109.2'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'Johann Sebastian Bach'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-early', 'mi-earlysynth']
'TDOR' (Original release time)                      '1969'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Brandenburg Concerto No. 4, BWV 1049: III. Presto'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Walter Carlos'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '12/13'
'TSO2'                                              'Carlos, Wendy'
'TSOP' (Performer sort order)                       'Bach, Johann Sebastian'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.83.01, LAME dll 3.96, 320 Kbit/s, Joint Stereo, Normal quality'
'TXXX:MusicBrainz Album Artist Id'                  '7e3b3173-2c1f-42c0-8544-0e6d19bb181f'
'TXXX:MusicBrainz Album Id'                         '8dfdd0cb-8c8a-4ba5-a9ce-7a2d619a23f6'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '24f1766e-9635-4d58-a4d4-9413f9f98a4c'
'TXXX:MusicBrainz TRM Id'                           'c5900ef7-067e-42dd-b14a-90375e03f0a4'
'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:discogstags'                                  ['electronic', 'modern classical']
'TXXX:lastfmtags'                                   ['electronic', 'soundtrack', 'classical', 'earwaves', 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.03 dB'
'TXXX:replaygain_track_peak'                        '0.562440'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'71431cd8-7cb2-403e-a63b-1c9ee48ec81a')

========================== row from database ==========================
                                              'id'  474741
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Well-Tempered Synthesizer/12 J.S. Bach   Brandenburg Concerto, No. 4  III. Presto.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  286
                                           'genre'  electronic-experimental-early;mi-earlysynth
                                        'filesize'  11688614
                                           'mtime'  1636911659
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 12 J.S. Bach Concerto, electronic experimental early;mi earlysynth
                                      'tag_artist'  Walter Carlos
                                     'tag_release'  The Well-Tempered Synthesizer
                                       'tag_title'  Brandenburg Concerto No. 4, BWV 1049: III. Presto
                                             'bpm'  109.2
                                    'search_title'  '1049':8,9 '4':5,6 'brandenburg':1 'bwv':7 'concerto':2 'iii':10,11 'no':3,4 'presto':12
                                   'search_artist'  'carlos':2 'walter':1
                                  'search_release'  'synthesizer':5 'tempered':3 'the':1 'well':2 'welltempered':4
                                     'search_rest'  'bach':4 'concerto':5,6 'early':9,11 'earlysynth':13 'electronic':7 'experimental':8 'j':1 'js':3 'mi':10,12 's':2
                                    'search_combo'  '1049':8A,9A '4':5A,6A 'bach':23 'brandenburg':1A 'bwv':7A 'carlos':14B 'concerto':2A,24,25 'early':28,30 'earlysynth':32 'electronic':26 'experimental':27 'iii':10A,11A 'j':20 'js':22 'mi':29,31 'no':3A,4A 'presto':12A 's':21 'synthesizer':19C 'tempered':17C 'the':15C 'walter':13B 'well':16C 'welltempered':18C
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'soundtrack', 'classical', 'earwaves', 'experimental']
                                        'tag_date'  1969
                                     'discogstags'  ['electronic', 'modern classical']

============================== file details ==============================
                                           'mtime'  1636911658.7114892  (2021-11-14 18:40:58)
                             'size'  11688614