======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '173'
                                          'artist'  'Eduard Kapper'
                                     'text_people'  ''
                                         'release'  'Golden Oldies 1923'
                                           'title'  'Adres -2-1923'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1923'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '111.4'
                                             'key'  '8A'
                                        '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)                     'Golden Oldies 1923'
'TBPM' (BPM (beats per minute))                     '111.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1923'
'TIT2' (Title/songname/content description)         'Adres -2-1923'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Eduard Kapper'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'pop'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'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'                        '+1.86 dB'
'TXXX:replaygain_track_peak'                        '0.693753'

========================== row from database ==========================
                                              'id'  1461764
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/GOLDEN OLDIES 1923/Eduard Kapper - Adres -2-1923.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  173
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3544625
                                           'mtime'  1620529311
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country GOLDEN OLDIES prerock jb jazz unsorted
                                      'tag_artist'  Eduard Kapper
                                     'tag_release'  Golden Oldies 1923
                                       'tag_title'  Adres -2-1923
                                             'bpm'  111.4
                                    'search_title'  '1923':3 '2':2 '21923':4 'adres':1
                                   'search_artist'  'eduard':1 'kapper':2
                                  'search_release'  '1923':3 'golden':1 'oldies':2
                                     'search_rest'  'country':4 'exotica':2 'golden':5 'jazz':1 'jb':7 'oldies':3 'prerock':6 'unsorted':8
                                    'search_combo'  '1923':3A,9C '2':2A '21923':4A 'adres':1A 'country':13 'eduard':5B 'exotica':11 'golden':7C,14 'jazz':10 'jb':16 'kapper':6B 'oldies':8C,12 'prerock':15 'unsorted':17
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1923
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620529311.136151  (2021-05-09 05:01:51)
                             'size'  3544625