======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '252'
                                          'artist'  'Goran Bregović'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Cocktail Molotov'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soundtrack', 'gypsy', 'balkan', 'folk', 'ethnic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '96.072'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '96.072'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TIT2' (Title/songname/content description)         'Cocktail Molotov'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '252000'
'TPE1' (Lead performer(s)/Soloist(s))               'Goran Bregović'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '10'
'TSOP' (Performer sort order)                       'Bregović, Goran'
'TXXX:Artists'                                      'Goran Bregović'
'TXXX:MusicBrainz Artist Id'                        '883ece23-2779-4091-b527-62eb07ee79d4'
'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'                                   ['soundtrack', 'gypsy', 'balkan', 'folk', 'ethnic']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.97 dB'
'TXXX:replaygain_track_peak'                        '0.599945'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'5f02e8ed-ff17-447a-acef-e2324af357a3')

========================== row from database ==========================
                                              'id'  785700
                                            'path'  /data/Music/Bulk/00localcharacter/Balkan/Goran Bregovic - Tales and Songs from Weddings and Funerals/cocktail_molotiv.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  252
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  4049573
                                           'mtime'  1620528363
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Balkan Bregovic Tales and Songs from Weddings and Funerals cocktail_molotiv loc style gypsy balkan klezmer;mi brass
                                      'tag_artist'  Goran Bregović
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Cocktail Molotov
                                             'bpm'  96.072
                                    'search_title'  'cocktail':1 'molotov':2
                                   'search_artist'  'bregovic':2,3 'goran':1
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  'and':4 'balkan':1 'brass':18 'bregovic':2 'cocktail':9 'from':6 'funerals':8 'gypsy':13 'klezmer':14,16 'loc':11 'mi':15,17 'molotiv':10 'songs':5 'style':12 'tales':3 'weddings':7
                                    'search_combo'  'album':7C 'and':14 'balkan':11 'brass':28 'bregovic':4B,5B,12 'cocktail':1A,19 'from':16 'funerals':18 'goran':3B 'gypsy':23 'klezmer':24,26 'loc':21 'mi':25,27 'molotiv':20 'molotov':2A 'non':6C 'nonalbum':8C 'songs':15 'style':22 'tales':13 'tracks':9C,10C 'weddings':17
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'gypsy', 'balkan', 'folk', 'ethnic']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528363.2082338  (2021-05-09 04:46:03)
                             'size'  4049573