======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '164'
                                          'artist'  'Al Bowlly'
                                     'text_people'  ''
                                         'release'  'HMV BD- 543'
                                           'title'  'Sweet Someone (+ Crooners Choir)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['30s', 'oldies', 'jazz', 'pop', '1930s', 'crooner']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1938'
                                        'comments'  ''
                                           'genre'  'prerock-vocal;prerock-jb-jazz-vocal'
                                             'bpm'  '141.9'
                                             '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)                     'HMV BD- 543'
'TBPM' (BPM (beats per minute))                     '141.9'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-vocal', 'prerock-jb-jazz-vocal']
'TDRC' (Recording time)                             '1938-04-01'
'TIT2' (Title/songname/content description)         'Sweet Someone (+ Crooners Choir)'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '164000'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Bowlly'
'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:lastfmtags'                                   ['30s', 'oldies', 'jazz', 'pop', '1930s', 'crooner']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.51 dB'
'TXXX:replaygain_track_peak'                        '0.692244'

========================== row from database ==========================
                                              'id'  1473338
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1938/Al Bowlly - Sweet Someone (Crooners Choir) 1-4-1938.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  164
                                           'genre'  prerock-vocal;prerock-jb-jazz-vocal
                                        'filesize'  3332473
                                           'mtime'  1620526511
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1938 (Crooners 1 1938 prerock vocal;prerock jb jazz vocal
                                      'tag_artist'  Al Bowlly
                                     'tag_release'  HMV BD- 543
                                       'tag_title'  Sweet Someone (+ Crooners Choir)
                                             'bpm'  141.9
                                    'search_title'  'choir':4,5 'crooners':3 'someone':2 'sweet':1
                                   'search_artist'  'al':1 'bowlly':2
                                  'search_release'  '543':4 'bd':2,3 'hmv':1
                                     'search_rest'  '00oldiepop':5 '1':9 '1938':6 'country':4 'crooners':7,8 'exotica':2 'jazz':1 'jb':15 'oldies':3 'prerock':10,12,14 'vocal':11,13,16
                                    'search_combo'  '00oldiepop':16 '1':20 '1938':17 '543':11C 'al':6B 'bd':9C,10C 'bowlly':7B 'choir':4A,5A 'country':15 'crooners':3A,18,19 'exotica':13 'hmv':8C 'jazz':12 'jb':26 'oldies':14 'prerock':21,23,25 'someone':2A 'sweet':1A 'vocal':22,24,27
                                    '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['30s', 'oldies', 'jazz', 'pop', '1930s', 'crooner']
                                        'tag_date'  1938
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526511.1781456  (2021-05-09 04:15:11)
                             'size'  3332473