======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '330'
                                          'artist'  'Ross Daly & Labyrinth'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  "Afou 'Heis Allon Sti Kardia"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', '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']")
                                      'lastfmtags'  "['world', 'fusion', 'world music', 'folk', 'asian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '93.070'
                                             'key'  '10A'
                                        '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))                     '93.070'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TIT2' (Title/songname/content description)         "Afou 'Heis Allon Sti Kardia"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ross Daly & Labyrinth'
'TRCK' (Track number/Position in set)               '7'
'TSOP' (Performer sort order)                       'Daly, Ross & Labyrinth'
'TXXX:Artists'                                      'Ross Daly & Labyrinth'
'TXXX:MusicBrainz Artist Id'                        'd3523fe4-7de5-4745-87c1-611f4985d9b9'
'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:lastfmtags'                                   ['world', 'fusion', 'world music', 'folk', 'asian']
'TXXX:q-bass'                                       '3'
'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'                        '+0.88 dB'
'TXXX:replaygain_track_peak'                        '0.609661'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'5f748a23-ba03-4c51-b820-75bddca556f9')

========================== row from database ==========================
                                              'id'  1387944
                                            'path'  /data/Music/Bulk/00localcharacter/Mladen Kojnarov - balkan blues 1/Ross Daly & Labyrinth - Afou Heis Allon Sti Kardia.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  330
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  7977516
                                           'mtime'  1620528850
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Mladen Kojnarov balkan blues 1 loc style gypsy or balkan or klezmer;mi brass
                                      'tag_artist'  Ross Daly & Labyrinth
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Afou 'Heis Allon Sti Kardia
                                             'bpm'  93.07
                                    'search_title'  'afou':1 'allon':4 'heis':2,3 'kardia':6 'sti':5
                                   'search_artist'  'daly':2 'labyrinth':3 'ross':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':19 'afou':1A 'album':11C 'allon':4A 'balkan':17 'blues':18 'brass':28 'daly':8B 'gypsy':22 'heis':2A,3A 'kardia':6A 'klezmer':24,26 'kojnarov':16 'labyrinth':9B 'loc':20 'mi':25,27 'mladen':15 'non':10C 'nonalbum':12C 'or':23 'ross':7B 'sti':5A 'style':21 'tracks':13C,14C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  10A
                                           '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-3', 'q-grit-2']
                                      'lastfmtags'  ['world', 'fusion', 'world music', 'folk', 'asian']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528849.503946  (2021-05-09 04:54:09)
                             'size'  7977516