======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '158'
                                          'artist'  'Johnny & Jones'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Lied Van Den Slangenbezweerder (snake Charmer)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1938'
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands;prerock-vocal'
                                             'bpm'  '136.3'
                                             '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'
'TBPM' (BPM (beats per minute))                     '136.3'
'TCON' (Content type, a.k.a. Genre)                 ['loc-eur-netherlands', 'prerock-vocal']
'TDRC' (Recording time)                             '1938-11'
'TIT2' (Title/songname/content description)         'Lied Van Den Slangenbezweerder (snake Charmer)'
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '158000'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny & Jones'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'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'                        '+2.72 dB'
'TXXX:replaygain_track_peak'                        '0.547590'

========================== row from database ==========================
                                              'id'  1467381
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1938/Johnny & Jones - Lied Van Den Slangenbezweerder (Snake Charmer) -11-1938.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  158
                                           'genre'  loc-eur-netherlands;prerock-vocal
                                        'filesize'  3239499
                                           'mtime'  1621627401
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1938 (Snake 11 1938 loc eur netherlands;prerock vocal
                                      'tag_artist'  Johnny & Jones
                                     'tag_release'  None
                                       'tag_title'  Lied Van Den Slangenbezweerder (snake Charmer)
                                             'bpm'  136.3
                                    'search_title'  'charmer':7,8 'den':3 'lied':1 'slangenbezweerder':4 'snake':5,6 'van':2
                                   'search_artist'  'johnny':1 'jones':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1938':6 'country':4 'eur':10 'exotica':2 'jazz':1 'loc':9 'netherlands':11,13 'oldies':3 'prerock':12,14 'snake':7,8 'vocal':15
                                    'search_combo'  '00oldiepop':15 '1938':16 'charmer':7A,8A 'country':14 'den':3A 'eur':20 'exotica':12 'jazz':11 'johnny':9B 'jones':10B 'lied':1A 'loc':19 'netherlands':21,23 'oldies':13 'prerock':22,24 'slangenbezweerder':4A 'snake':5A,6A,17,18 'van':2A 'vocal':25
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1938
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627401.3889794  (2021-05-21 22:03:21)
                             'size'  3239499