======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '177'
                                          'artist'  'Lew Stone'
                                     'text_people'  ''
                                         'release'  'Decca F 3630'
                                           'title'  "Isn't It Heavenly (vocal - Al Bowlly)"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-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-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['british dance bands', 'jazz', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1933'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '104.2'
                                             'key'  '3A'
                                        '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)                     'Decca F 3630'
'TBPM' (BPM (beats per minute))                     '104.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1933-08-01'
'TIT2' (Title/songname/content description)         "Isn't It Heavenly (vocal - Al Bowlly)"
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '177000'
'TPE1' (Lead performer(s)/Soloist(s))               'Lew Stone'
'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:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['british dance bands', 'jazz', 'swing']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.00 dB'
'TXXX:replaygain_track_peak'                        '0.523914'

========================== row from database ==========================
                                              'id'  1521244
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1933/Lew Stone - Isn_t It Heavenly (vocal - Al Bowlly) 1-8-1933.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  177
                                           'genre'  prerock-swing
                                        'filesize'  2901637
                                           'mtime'  1620560251
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1933 Isn_t 1 8 1933 prerock swing
                                      'tag_artist'  Lew Stone
                                     'tag_release'  Decca F 3630
                                       'tag_title'  Isn't It Heavenly (vocal - Al Bowlly)
                                             'bpm'  104.2
                                    'search_title'  'al':8 'bowlly':9,10 'heavenly':5 'isn':1 'isnt':3 'it':4 't':2 'vocal':6,7
                                   'search_artist'  'lew':1 'stone':2
                                  'search_release'  '3630':3 'decca':1 'f':2
                                     'search_rest'  '00oldiepop':5 '1':9 '1933':6 '8':10 'country':4 'exotica':2 'isn':7 'jazz':1 'oldies':3 'prerock':11 'swing':12 't':8
                                    'search_combo'  '00oldiepop':20 '1':24 '1933':21 '3630':15C '8':25 'al':8A 'bowlly':9A,10A 'country':19 'decca':13C 'exotica':17 'f':14C 'heavenly':5A 'isn':1A,22 'isnt':3A 'it':4A 'jazz':16 'lew':11B 'oldies':18 'prerock':26 'stone':12B 'swing':27 't':2A,23 'vocal':6A,7A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  3A
                                           '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['british dance bands', 'jazz', 'swing']
                                        'tag_date'  1933
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620560251.3367195  (2021-05-09 13:37:31)
                             'size'  2901637