======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '289'
                                          'artist'  'Pink Floyd'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Cymbaline'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-PLAY-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-1', 'q-other-4', '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'  '145.580'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TIT2' (Title/songname/content description)         'Cymbaline'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pink Floyd'
'TSOP' (Performer sort order)                       'Pink Floyd'
'TXXX:MP3GAIN_MINMAX'                               '045,192'
'TXXX:MP3GAIN_UNDO'                                 '-001,-001,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-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.23 dB'
'TXXX:replaygain_track_peak'                        '0.896704'
'TXXX:tracknum'                                     '06'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f23f9a5f-5427-43ab-95fa-8d1a01b9ac48')

========================== row from database ==========================
                                              'id'  1490480
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Pink Floyd/More/Pink Floyd - Cymbaline - 06.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  289
                                           'genre'  rock-cppex-progressive
                                        'filesize'  4060755
                                           'mtime'  1620737719
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy More 06 rock cppex progressive
                                      'tag_artist'  Pink Floyd
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Cymbaline
                                             'bpm'  145.58
                                    'search_title'  'cymbaline':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':5C 'classicprogpsy':9 'cppex':12 'cymbaline':1A 'floyd':3B 'more':10 'non':4C 'nonalbum':6C 'pink':2B 'progressive':13 'rock':11 'tracks':7C,8C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['psychedelic rock', 'rock', 'progressive rock', 'psychedelic', 'classic rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737718.5302093  (2021-05-11 14:55:18)
                             'size'  4060755