======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '143'
                                          'artist'  'Carroll Gibbons'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Let's Have A Jubilee (vocal - Brian Lawrance)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['piano', 'jazz', 'female vocalists', '1401fh', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '114.9'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '114.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1935-02-04'
'TIT2' (Title/songname/content description)         "Let's Have A Jubilee (vocal - Brian Lawrance)"
'TKEY' (Initial key)                                '8B'
'TLEN' (Length)                                     '143000'
'TPE1' (Lead performer(s)/Soloist(s))               'Carroll Gibbons'
'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'                                   ['piano', 'jazz', 'female vocalists', '1401fh', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+1.50 dB'
'TXXX:replaygain_track_peak'                        '0.649981'

========================== row from database ==========================
                                              'id'  1505640
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1935/Carroll Gibbons - Let_s Have A Jubilee (vocal - Brian Lawrance) 4-2-1935.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  143
                                           'genre'  prerock-swing
                                        'filesize'  2902581
                                           'mtime'  1620560677
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1935 Let_s 4 2 1935 prerock swing
                                      'tag_artist'  Carroll Gibbons
                                     'tag_release'  None
                                       'tag_title'  Let's Have A Jubilee (vocal - Brian Lawrance)
                                             'bpm'  114.9
                                    'search_title'  'a':5 'brian':9 'have':4 'jubilee':6 'lawrance':10,11 'let':1 'lets':3 's':2 'vocal':7,8
                                   'search_artist'  'carroll':1 'gibbons':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1935':6 '2':10 '4':9 'country':4 'exotica':2 'jazz':1 'let':7 'oldies':3 'prerock':11 's':8 'swing':12
                                    'search_combo'  '00oldiepop':18 '1935':19 '2':23 '4':22 'a':5A 'brian':9A 'carroll':12B 'country':17 'exotica':15 'gibbons':13B 'have':4A 'jazz':14 'jubilee':6A 'lawrance':10A,11A 'let':1A,20 'lets':3A 'oldies':16 'prerock':24 's':2A,21 'swing':25 'vocal':7A,8A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8B
                                           '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['piano', 'jazz', 'female vocalists', '1401fh', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560676.6745114  (2021-05-09 13:44:36)
                             'size'  2902581