======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '159'
                                          'artist'  'Zarah Leander'
                                     'text_people'  ''
                                         'release'  'Parlophon B 11303'
                                           'title'  "Ein Paar Tränen Werd' Ich Weinen"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'chanson', 'cabaret', 'female vocalists', 'myhitparade']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1939'
                                        'comments'  ''
                                           'genre'  'prerock-cabaret'
                                             'bpm'  '99.0'
                                             'key'  '7B'
                                        '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)                     'Parlophon B 11303'
'TBPM' (BPM (beats per minute))                     '99.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-cabaret'
'TDRC' (Recording time)                             '1939-08-14'
'TIT2' (Title/songname/content description)         "Ein Paar Tränen Werd' Ich Weinen"
'TKEY' (Initial key)                                '7B'
'TLEN' (Length)                                     '159000'
'TPE1' (Lead performer(s)/Soloist(s))               'Zarah Leander'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['german', 'chanson', 'cabaret', 'female vocalists', 'myhitparade']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.50 dB'
'TXXX:replaygain_track_peak'                        '0.528653'

========================== row from database ==========================
                                              'id'  1496502
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1939/Zarah Leander - Ein Paar Tranen Werd_ Ich Weinen 14-8-1939.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  159
                                           'genre'  prerock-cabaret
                                        'filesize'  3210075
                                           'mtime'  1620560785
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1939 Tranen Werd_ 14 8 1939 prerock cabaret
                                      'tag_artist'  Zarah Leander
                                     'tag_release'  Parlophon B 11303
                                       'tag_title'  Ein Paar Tränen Werd' Ich Weinen
                                             'bpm'  99.0
                                    'search_title'  'ein':1 'ich':7 'paar':2 'tranen':3,4 'weinen':8 'werd':5,6
                                   'search_artist'  'leander':2 'zarah':1
                                  'search_release'  '11303':3 'b':2 'parlophon':1
                                     'search_rest'  '00oldiepop':5 '1939':6 '8':9 'cabaret':11 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':10 'tranen':7 'werd':8
                                    'search_combo'  '00oldiepop':18 '11303':13C '1939':19 '8':22 'b':12C 'cabaret':24 'country':17 'ein':1A 'exotica':15 'ich':7A 'jazz':14 'leander':10B 'oldies':16 'paar':2A 'parlophon':11C 'prerock':23 'tranen':3A,4A,20 'weinen':8A 'werd':5A,6A,21 'zarah':9B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  7B
                                           '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-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['german', 'chanson', 'cabaret', 'female vocalists', 'myhitparade']
                                        'tag_date'  1939
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560785.0161376  (2021-05-09 13:46:25)
                             'size'  3210075