======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '273'
                                          'artist'  'Vladimir Kandic (Bata Kanda)'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Aven Romalen, Aven Cavalen'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '116.857'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '116.857'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TIT2' (Title/songname/content description)         'Aven Romalen, Aven Cavalen'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Vladimir Kandic (Bata Kanda)'
'TRCK' (Track number/Position in set)               '11'
'TSOP' (Performer sort order)                       'Kandic, Vladimir'
'TXXX:Artists'                                      'Vladimir Kandic (Bata Kanda)'
'TXXX:MusicBrainz Artist Id'                        'de90719f-4d1f-4647-a7c9-52136f9bbda1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.12 dB'
'TXXX:replaygain_track_peak'                        '0.496528'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'16208ebb-80e3-4549-ba7a-f28a1a73a69c')

========================== row from database ==========================
                                              'id'  1387071
                                            'path'  /data/Music/Bulk/00localcharacter/Mladen Kojnarov - balkan blues 1/Vladimir Kandic ( Bata Kanda) - Aven Romalen, Aven Cavalen.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  273
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  6614453
                                           'mtime'  1620528873
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Mladen Kojnarov balkan blues 1 loc style gypsy or balkan or klezmer;mi brass
                                      'tag_artist'  Vladimir Kandic (Bata Kanda)
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Aven Romalen, Aven Cavalen
                                             'bpm'  116.857
                                    'search_title'  'aven':1 'cavalen':4 'romalen':2,3
                                   'search_artist'  'bata':3,4 'kanda':5,6 'kandic':2 'vladimir':1
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '1':5 'balkan':3 'blues':4 'brass':14 'gypsy':8 'klezmer':10,12 'kojnarov':2 'loc':6 'mi':11,13 'mladen':1 'or':9 'style':7
                                    'search_combo'  '1':20 'album':12C 'aven':1A 'balkan':18 'bata':7B,8B 'blues':19 'brass':29 'cavalen':4A 'gypsy':23 'kanda':9B,10B 'kandic':6B 'klezmer':25,27 'kojnarov':17 'loc':21 'mi':26,28 'mladen':16 'non':11C 'nonalbum':13C 'or':24 'romalen':2A,3A 'style':22 'tracks':14C,15C 'vladimir':5B
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528873.346949  (2021-05-09 04:54:33)
                             'size'  6614453