======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '122'
                                          'artist'  'Hans Kronold cello'
                                     'text_people'  ''
                                         'release'  'Edison  9366'
                                           'title'  'Simple Confession'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1906'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '123.5'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Edison  9366'
'TBPM' (BPM (beats per minute))                     '123.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1906'
'TIT2' (Title/songname/content description)         'Simple Confession'
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '122000'
'TPE1' (Lead performer(s)/Soloist(s))               'Hans Kronold cello'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.74 dB'
'TXXX:replaygain_track_peak'                        '0.896662'

========================== row from database ==========================
                                              'id'  1468709
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1906/Hans Kronold cello - Simple Confession 1906.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  122
                                           'genre'  prerock-unsorted
                                        'filesize'  2492460
                                           'mtime'  1621697650
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1906 1906 prerock unsorted
                                      'tag_artist'  Hans Kronold cello
                                     'tag_release'  Edison  9366
                                       'tag_title'  Simple Confession
                                             'bpm'  123.5
                                    'search_title'  'confession':2 'simple':1
                                   'search_artist'  'cello':3 'hans':1 'kronold':2
                                  'search_release'  '9366':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1906':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'unsorted':8
                                    'search_combo'  '00oldiepop':12 '1906':13 '9366':7C 'cello':5B 'confession':2A 'country':11 'edison':6C 'exotica':9 'hans':3B 'jazz':8 'kronold':4B 'oldies':10 'prerock':14 'simple':1A 'unsorted':15
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1906
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697649.7684941  (2021-05-22 17:34:09)
                             'size'  2492460