======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '238'
                                          'artist'  'Rudy Wiedoeft'
                                     'text_people'  ''
                                         'release'  'Edison Blue Amberol  4066'
                                           'title'  'My Sahara Rose (+ Frank Wadsworth Quartet) -3-1920 Edison Blue Amberol'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'novelty', 'ragtime', 'saxophone', '1920s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1920'
                                        'comments'  ''
                                           'genre'  'prerock-ragtime'
                                             'bpm'  '91.8'
                                             '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 Blue Amberol  4066'
'TBPM' (BPM (beats per minute))                     '91.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-ragtime'
'TDRC' (Recording time)                             '1920'
'TIT2' (Title/songname/content description)         'My Sahara Rose (+ Frank Wadsworth Quartet) -3-1920 Edison Blue Amberol'
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '238000'
'TPE1' (Lead performer(s)/Soloist(s))               'Rudy Wiedoeft'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'novelty', 'ragtime', 'saxophone', '1920s']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.33 dB'
'TXXX:replaygain_track_peak'                        '0.453583'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3N23S9863119U1388F20F6C368CD98E4F61D85343B7994A3P1')

========================== row from database ==========================
                                              'id'  1468547
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920/Rudy Wiedoeft - My Sahara Rose (+ Frank Wadsworth Quartet) 21-3-1920 Edison Blue Amberol.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  238
                                           'genre'  prerock-ragtime
                                        'filesize'  4916580
                                           'mtime'  1620526955
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 21 prerock ragtime
                                      'tag_artist'  Rudy Wiedoeft
                                     'tag_release'  Edison Blue Amberol  4066
                                       'tag_title'  My Sahara Rose (+ Frank Wadsworth Quartet) -3-1920 Edison Blue Amberol
                                             'bpm'  91.8
                                    'search_title'  '1920':9 '3':8 '31920':10 'amberol':13 'blue':12 'edison':11 'frank':4 'my':1 'quartet':6,7 'rose':3 'sahara':2 'wadsworth':5
                                   'search_artist'  'rudy':1 'wiedoeft':2
                                  'search_release'  '4066':4 'amberol':3 'blue':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '21':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'ragtime':8
                                    'search_combo'  '00oldiepop':24 '1920':9A '21':25 '3':8A '31920':10A '4066':19C 'amberol':13A,18C 'blue':12A,17C 'country':23 'edison':11A,16C 'exotica':21 'frank':4A 'jazz':20 'my':1A 'oldies':22 'prerock':26 'quartet':6A,7A 'ragtime':27 'rose':3A 'rudy':14B 'sahara':2A 'wadsworth':5A 'wiedoeft':15B
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'novelty', 'ragtime', 'saxophone', '1920s']
                                        'tag_date'  1920
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526954.7599945  (2021-05-09 04:22:34)
                             'size'  4916580