======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '199'
                                          'artist'  'Boban Marković Orkestar'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Za Beograd'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['gypsy', 'brass', 'balkan', 'balkan brass', 'world']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '100.555'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '100.555'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Za Beograd'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Boban Marković Orkestar'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['gypsy', 'brass', 'balkan', 'balkan brass', 'world']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.36 dB'
'TXXX:replaygain_track_peak'                        '0.846674'

========================== row from database ==========================
                                              'id'  949097
                                            'path'  /data/Music/Bulk/sns/boban-markovic-orkestar-za-beograd.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  199
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  4781754
                                           'mtime'  1621630406
                                   'redo_metaread'  0
                                        'rest_str'   sns boban markovic orkestar beograd set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Boban Marković Orkestar
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Za Beograd
                                             'bpm'  100.555
                                    'search_title'  'beograd':2 'za':1
                                   'search_artist'  'boban':1 'markovic':2,3 'orkestar':4
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'beograd':5 'boban':2 'markovic':3 'mor':12 'orkestar':4 'pl':7 'set':6,9,11 'shirleyspinoza':8,10 'sns':1
                                    'search_combo'  'beograd':2A,13 'boban':3B,10 'markovic':4B,5B,11 'mor':20 'orkestar':6B,12 'pl':15 'set':14,17,19 'shirley':7C 'shirleyspinoza':16,18 'sns':9 'spinoza':8C 'za':1A
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['gypsy', 'brass', 'balkan', 'balkan brass', 'world']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630405.646745  (2021-05-21 22:53:25)
                             'size'  4781754