======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '205'
                                          'artist'  'Pink Floyd'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'The Nile Song'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic "
 "rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '90.533'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '90.533'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TIT2' (Title/songname/content description)         'The Nile Song'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pink Floyd'
'TSOP' (Performer sort order)                       'Pink Floyd'
'TXXX:MP3GAIN_MINMAX'                               '085,191'
'TXXX:MP3GAIN_UNDO'                                 '+002,+002,N'
'TXXX:MusicBrainz Artist Id'                        '83d91898-7763-47d7-b03b-b92132375c47'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.91 dB'
'TXXX:replaygain_track_peak'                        '0.677738'
'TXXX:tracknum'                                     '02'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'c36291a6-0554-4d52-9526-39944cefab2f')

========================== row from database ==========================
                                              'id'  1490477
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Pink Floyd/More/Pink Floyd - The Nile Song - 02.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  205
                                           'genre'  rock-cppex-progressive
                                        'filesize'  2882423
                                           'mtime'  1620737719
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy More 02 rock cppex progressive
                                      'tag_artist'  Pink Floyd
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  The Nile Song
                                             'bpm'  90.533
                                    'search_title'  'nile':2 'song':3 'the':1
                                   'search_artist'  'floyd':2 'pink':1
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  'classicprogpsy':1 'cppex':4 'more':2 'progressive':5 'rock':3
                                    'search_combo'  'album':7C 'classicprogpsy':11 'cppex':14 'floyd':5B 'more':12 'nile':2A 'non':6C 'nonalbum':8C 'pink':4B 'progressive':15 'rock':13 'song':3A 'the':1A 'tracks':9C,10C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', '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-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737718.7451746  (2021-05-11 14:55:18)
                             'size'  2882423