======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '214'
                                          '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 - 4. Offertorium - 1. Domine Jesu Christe'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-2', 'q-bass-1', "
 "'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'  '9'
                                      'tracktotal'  '14'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments;set-pl-sced'
                                             'bpm'  '143.9'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 0000014E 0000010A 00001A06 00000E25 0000C5F5 0002DFEB 000053B3 00003D99 '
 '0002DF34 0000AB39')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A20 00000000009017D0 00000000 004E5E0B 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))                     '143.9'
'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 - 4. Offertorium - 1. Domine Jesu Christe'
'TKEY' (Initial key)                                '6A'
'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)               '9/14'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '3'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.04 dB'
'TXXX:replaygain_track_peak'                        '0.775481'

========================== row from database ==========================
                                              'id'  1477076
                                            'path'  /data/Music/Bulk/00instruments-classical/Hajossyova, Kosler; Slovak Philharmonic Orchestra, Slovak Philharmonic Chorus/09 Mozart_ Requiem In D Minor, K 626 - 4. Offertorium - 1. Domine Jesu Christe.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  214
                                           'genre'  prerock-classical or classical instruments;set-pl-sced
                                        'filesize'  5174168
                                           'mtime'  1636913622
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 09 Mozart_ 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 - 4. Offertorium - 1. Domine Jesu Christe
                                             'bpm'  143.9
                                    'search_title'  '1':13,14 '4':10,11 '626':9 'christe':17 'd':5 'domine':15 'in':4 'jesu':16 'k':8 'minor':6,7 'mozart':1,2 'offertorium':12 '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 'instruments':5,7 'mozart':3 'pl':9 'prerock':4 'sced':10 'set':6,8
                                    'search_combo'  '00instruments':34 '1':13A,14A '4':10A,11A '626':9A 'chorus':30B 'christe':17A 'classical':35 'd':5A 'domine':15A 'etc':21B,22B 'hajossyova':19B,20B 'in':4A 'instruments':38,40 'jesu':16A 'k':8A 'kosler':24B,25B 'magdalena':18B 'minor':6A,7A 'mozart':1A,2A,31C,32C,36 'offertorium':12A 'orchestra':28B,29B 'philharmonic':27B 'pl':42 'prerock':37 'requiem':3A,33C 'sced':43 'set':39,41 'slovak':26B 'zdenek':23B
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-3', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913621.5428386  (2021-11-14 19:13:41)
                             'size'  5174168