======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '1243'
                                          'artist'  'Walter Carlos'
                                     'text_people'  ''
                                         'release'  'Sonic Seasonings'
                                           'title'  'Spring'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-3', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-2', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronic', 'soundtrack', 'classical', 'earwaves', 'experimental']"
                                     'discogstags'  "['electronic', 'modern classical', 'experimental', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '2'
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early'
                                             'bpm'  '136.1'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Sonic Seasonings'
'TBPM' (BPM (beats per minute))                     '136.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-early'
'TDOR' (Original release time)                      '1972'
'TDRC' (Recording time)                             '1972'
'TIT2' (Title/songname/content description)         'Spring'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Walter Carlos'
'TPE2' (Band/orchestra/accompaniment)               'Walter Carlos'
'TPOS' (Part of a set)                              '1/2'
'TRCK' (Track number/Position in set)               '1/2'
'TSO2'                                              'Carlos, Wendy'
'TSOP' (Performer sort order)                       'Carlos, Wendy'
'TXXX:Artists'                                      'Walter Carlos'
'TXXX:MusicBrainz Album Artist Id'                  '7e3b3173-2c1f-42c0-8544-0e6d19bb181f'
'TXXX:MusicBrainz Album Id'                         '6b6126ba-c9b7-4c37-bcd6-7263254c46fa'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '7e3b3173-2c1f-42c0-8544-0e6d19bb181f'
'TXXX:MusicBrainz Release Group Id'                 'f46669fd-4ce1-31b4-9f59-6bfb445046ae'
'TXXX:MusicBrainz Release Track Id'                 'c3d93de2-04b0-31b6-8f16-69cc6505a29b'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'modern classical', 'experimental', 'ambient']
'TXXX:lastfmtags'                                   ['electronic', 'soundtrack', 'classical', 'earwaves', 'experimental']
'TXXX:originalyear'                                 '1972'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.16 dB'
'TXXX:replaygain_track_peak'                        '0.803739'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'21159097-d5e1-4004-b9c9-aabcf3d01d99')

========================== row from database ==========================
                                              'id'  973411
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Wendy Carlos/walter carlos - spring.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  1243
                                           'genre'  electronic-experimental-early
                                        'filesize'  29956929
                                           'mtime'  1637329138
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Wendy walter carlos spring electronic experimental early
                                      'tag_artist'  Walter Carlos
                                     'tag_release'  Sonic Seasonings
                                       'tag_title'  Spring
                                             'bpm'  136.1
                                    'search_title'  'spring':1
                                   'search_artist'  'carlos':2 'walter':1
                                  'search_release'  'seasonings':2 'sonic':1
                                     'search_rest'  'carlos':3 'early':7 'electronic':5 'experimental':6 'spring':4 'walter':2 'wendy':1
                                    'search_combo'  'carlos':3B,8 'early':12 'electronic':10 'experimental':11 'seasonings':5C 'sonic':4C 'spring':1A,9 'walter':2B,7 'wendy':6
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-2', 'q-mixbeat-1', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'soundtrack', 'classical', 'earwaves', 'experimental']
                                        'tag_date'  1972
                                     'discogstags'  ['electronic', 'modern classical', 'experimental', 'ambient']

============================== file details ==============================
                                           'mtime'  1637329138.1496065  (2021-11-19 14:38:58)
                             'size'  29956929