======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '350'
                                          'artist'  ('Magdalena Hajossyova, Etc., Zdenek Kosler; Slovak Philharmonic Orchestra, '
 'Slovak Philharmonic Chorus')
                                     'text_people'  'Mozart'
                                         'release'  'Mozart: Requiem'
                                           'title'  'Mozart: Requiem In D Minor, K 626 - 7. Communio: Lux Aeterna'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '14'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments;set-pl-sced'
                                             'bpm'  '145.8'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000162 00000114 00002041 000011A9 0002769C 0000CB29 0000584A 00004AE6 '
 '0002769C 00027ACB')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000924 0000000000EC034C 00000000 008063C2 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '14+E119D3EE149175E25F467B55A7107EB7+937788'
'TALB' (Album/Movie/Show title)                     'Mozart: Requiem'
'TBPM' (BPM (beats per minute))                     '145.8'
'TCOM' (Composer)                                   'Mozart'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-classical or classical instruments', 'set-pl-sced']
'TDRC' (Recording time)                             '1989'
'TENC' (Encoded by)                                 'iTunes v7.6.1'
'TIT2' (Title/songname/content description)         'Mozart: Requiem In D Minor, K 626 - 7. Communio: Lux Aeterna'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               ('Magdalena Hajossyova, Etc., Zdenek Kosler; Slovak Philharmonic Orchestra, '
 'Slovak Philharmonic Chorus')
'TPE2' (Band/orchestra/accompaniment)               ('Magdalena Hajossyova, Etc., Zdenek Kosler; Slovak Philharmonic Orchestra, '
 'Slovak Philharmonic Chorus')
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '14/14'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.49 dB'
'TXXX:replaygain_track_peak'                        '0.819433'

========================== row from database ==========================
                                              'id'  1477075
                                            'path'  /data/Music/Bulk/00instruments-classical/Hajossyova, Kosler; Slovak Philharmonic Orchestra, Slovak Philharmonic Chorus/14 Mozart_ Requiem In D Minor, K 626 - 7. Communio_ Lux Aeterna.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  350
                                           'genre'  prerock-classical or classical instruments;set-pl-sced
                                        'filesize'  8452402
                                           'mtime'  1636913622
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 14 Mozart_ Communio_ prerock classical classical instruments;set pl sced
                                      'tag_artist'  Magdalena Hajossyova, Etc., Zdenek Kosler; Slovak Philharmonic Orchestra, Slovak Philharmonic Chorus
                                     'tag_release'  Mozart: Requiem
                                       'tag_title'  Mozart: Requiem In D Minor, K 626 - 7. Communio: Lux Aeterna
                                             'bpm'  145.8
                                    'search_title'  '626':9 '7':10,11 'aeterna':15 'communio':12,13 'd':5 'in':4 'k':8 'lux':14 'minor':6,7 'mozart':1,2 'requiem':3
                                   'search_artist'  'chorus':13 'etc':4,5 'hajossyova':2,3 'kosler':7,8 'magdalena':1 'orchestra':11,12 'philharmonic':10 'slovak':9 'zdenek':6
                                  'search_release'  'mozart':1,2 'requiem':3
                                     'search_rest'  '00instruments':1 'classical':2 'communio':4 'instruments':6,8 'mozart':3 'pl':10 'prerock':5 'sced':11 'set':7,9
                                    'search_combo'  '00instruments':32 '626':9A '7':10A,11A 'aeterna':15A 'chorus':28B 'classical':33 'communio':12A,13A,35 'd':5A 'etc':19B,20B 'hajossyova':17B,18B 'in':4A 'instruments':37,39 'k':8A 'kosler':22B,23B 'lux':14A 'magdalena':16B 'minor':6A,7A 'mozart':1A,2A,29C,30C,34 'orchestra':26B,27B 'philharmonic':25B 'pl':41 'prerock':36 'requiem':3A,31C 'sced':42 'set':38,40 'slovak':24B 'zdenek':21B
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913621.5715609  (2021-11-14 19:13:41)
                             'size'  8452402