======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '175'
                                          'artist'  'Marlene Dietrich'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Falling In Love Again'
                                           '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-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'cabaret', 'female vocalists', 'oldies', 'deutsch']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1939'
                                        'comments'  ''
                                           'genre'  'prerock-cabaret'
                                             'bpm'  '137.7'
                                             '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'
'TBPM' (BPM (beats per minute))                     '137.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-cabaret'
'TDRC' (Recording time)                             '1939-12-11'
'TIT2' (Title/songname/content description)         'Falling In Love Again'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '175000'
'TPE1' (Lead performer(s)/Soloist(s))               'Marlene Dietrich'
'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', 'cabaret', 'female vocalists', 'oldies', 'deutsch']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+2.45 dB'
'TXXX:replaygain_track_peak'                        '0.651327'

========================== row from database ==========================
                                              'id'  1463557
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1939/Marlene Dietrich - Falling In Love Again (Ich Bin Von Kopf Biss Fuss) 11-12-1939.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  175
                                           'genre'  prerock-cabaret
                                        'filesize'  3580366
                                           'mtime'  1620560768
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1939 (Ich Bin Von Kopf Biss Fuss) 11 12 1939 prerock cabaret
                                      'tag_artist'  Marlene Dietrich
                                     'tag_release'  None
                                       'tag_title'  Falling In Love Again
                                             'bpm'  137.7
                                    'search_title'  'again':4 'falling':1 'in':2 'love':3
                                   'search_artist'  'dietrich':2 'marlene':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1939':6 'bin':9 'biss':12 'cabaret':16 'country':4 'exotica':2 'fuss':13,14 'ich':7,8 'jazz':1 'kopf':11 'oldies':3 'prerock':15 'von':10
                                    'search_combo'  '00oldiepop':11 '1939':12 'again':4A 'bin':15 'biss':18 'cabaret':22 'country':10 'dietrich':6B 'exotica':8 'falling':1A 'fuss':19,20 'ich':13,14 'in':2A 'jazz':7 'kopf':17 'love':3A 'marlene':5B 'oldies':9 'prerock':21 'von':16
                                    '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-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['german', 'cabaret', 'female vocalists', 'oldies', 'deutsch']
                                        'tag_date'  1939
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560767.508888  (2021-05-09 13:46:07)
                             'size'  3580366