======================== unified (from filesystem) ========================
                                         'bitrate'  '204.59'
                                        'duration'  '320'
                                          'artist'  'Pascoal, Hermeto'
                                     'text_people'  ''
                                         'release'  'Slaves Mass'
                                           'title'  'Cannon'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '86'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:picture'                                      type PictureType.COVER_FRONT (Cover (front)) b'picture'
                                     
'COMM:Media Jukebox: Date:\x00\x00\x00'             '28126'
'COMM:Media Jukebox: Gnosis:\x00\x00\x00'           '10.9300003051757812'
'COMM:Media Jukebox: Intensity:\x00\x00\x00'        '1'
'COMM:Media Jukebox: Tool Name:\x00\x00\x00'        'Media Center'
'COMM:Media Jukebox: Tool Version:\x00\x00\x00'     '12.0.534'
'PRIV:AverageLevel:\x05\t\x00\x00'                  PRIV(owner='AverageLevel', data=b'\x05\t\x00\x00')
'PRIV:PeakValue:\x15g\x00\x00'                      PRIV(owner='PeakValue', data=b'\x15g\x00\x00')
'TALB' (Album/Movie/Show title)                     'Slaves Mass'
'TBPM' (BPM (beats per minute))                     '86'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-unsorted', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         'Cannon'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hermeto Pascoal'
'TPE2' (Band/orchestra/accompaniment)               'Pascoal, Hermeto'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+6.77 dB'
'TXXX:replaygain_track_peak'                        '0.402674'

========================== row from database ==========================
                                              'id'  1119675
                                            'path'  /data/Music/Bulk/00instruments-classical/Hermeto Pascoal – Slaves mass (1977)/pascoal, hermeto [slaves mass]-(brazil)-04-cannon.mp3
                                         'working'  None
                                         'bitrate'  204
                                    'duration_sec'  320
                                           'genre'  prerock-jb-jazz-unsorted;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  8247168
                                           'mtime'  1620539572
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical – mass (1977) pascoal, hermeto [slaves mass] (brazil) 04 cannon prerock jb jazz unsorted;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Pascoal, Hermeto
                                     'tag_release'  Slaves Mass
                                       'tag_title'  Cannon
                                             'bpm'  86.0
                                    'search_title'  'cannon':1
                                   'search_artist'  'hermeto':3 'pascoal':1,2
                                  'search_release'  'mass':2 'slaves':1
                                     'search_rest'  '00instruments':1 '1977':4,5 'brazil':12,13 'cannon':14 'classical':2 'hermeto':8 'jazz':17 'jb':16 'mass':3,11 'mor':27 'pascoal':6,7 'pl':22 'prerock':15 'set':19,21,24,26 'shirleyspinoza':23,25 'slaves':9,10 'unsorted':18,20
                                    'search_combo'  '00instruments':7 '1977':10,11 'brazil':18,19 'cannon':1A,20 'classical':8 'hermeto':4B,14 'jazz':23 'jb':22 'mass':6C,9,17 'mor':33 'pascoal':2B,3B,12,13 'pl':28 'prerock':21 'set':25,27,30,32 'shirleyspinoza':29,31 'slaves':5C,15,16 'unsorted':24,26
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1977
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620539571.6327305  (2021-05-09 07:52:51)
                             'size'  8247168