======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '155'
                                          'artist'  'Leslie Hutchinson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "It's De Lovely"
                                           'quals'  ("['Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-PLAY-2', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-chart-1', "
 "'q-drums-1', 'q-other-3', 'q-vocals-4', 'q-mixbeat-1', 'Q-PIANO-2']")
                                      'lastfmtags'  "['spotify', 'all', 'jazz', '30s', 'big band swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1938'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '123.3'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TBPM' (BPM (beats per minute))                     '123.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1938-10-07'
'TIT2' (Title/songname/content description)         "It's De Lovely"
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '155000'
'TPE1' (Lead performer(s)/Soloist(s))               'Leslie Hutchinson'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['spotify', 'all', 'jazz', '30s', 'big band swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.84 dB'
'TXXX:replaygain_track_peak'                        '0.668129'

========================== row from database ==========================
                                              'id'  1519968
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1938/Leslie Hutchinson - It_s De Lovely 7-10-1938.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  155
                                           'genre'  prerock-vocal
                                        'filesize'  3141591
                                           'mtime'  1620385236
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1938 It_s 7 10 1938 prerock vocal
                                      'tag_artist'  Leslie Hutchinson
                                     'tag_release'  None
                                       'tag_title'  It's De Lovely
                                             'bpm'  123.3
                                    'search_title'  'de':4 'it':1 'its':3 'lovely':5 's':2
                                   'search_artist'  'hutchinson':2 'leslie':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1938':6 '7':9 'country':4 'exotica':2 'it':7 'jazz':1 'oldies':3 'prerock':10 's':8 'vocal':11
                                    'search_combo'  '00oldiepop':12 '1938':13 '7':16 'country':11 'de':4A 'exotica':9 'hutchinson':7B 'it':1A,14 'its':3A 'jazz':8 'leslie':6B 'lovely':5A 'oldies':10 'prerock':17 's':2A,15 'vocal':18
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['spotify', 'all', 'jazz', '30s', 'big band swing']
                                        'tag_date'  1938
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385236.1137252  (2021-05-07 13:00:36)
                             'size'  3141591