======================== unified (from filesystem) ========================
                                         'bitrate'  '187.667'
                                        'duration'  '159'
                                          'artist'  'Marlene Dietrich'
                                     'text_people'  ''
                                         'release'  'Marlene Dietrich - Best of'
                                           'title'  "Kinder, heut' abend such` ich mir was aus"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', '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'  '10'
                                      'tracktotal'  '12'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'prerock-cabaret'
                                             'bpm'  '112.8'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'AB09D10C'
'TALB' (Album/Movie/Show title)                     'Marlene Dietrich - Best of'
'TBPM' (BPM (beats per minute))                     '112.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-cabaret'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         "Kinder, heut' abend such` ich mir was aus"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Marlene Dietrich'
'TRCK' (Track number/Position in set)               '10/12'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.92, VBR 3, Stereo, High quality'
'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'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.36 dB'
'TXXX:replaygain_track_peak'                        '0.428018'

========================== row from database ==========================
                                              'id'  1514521
                                            'path'  /data/Music/Bulk/00instruments-classical/Marlene Dietrich/Marlene Dietrich - Best of/Marlene Dietrich - 10 - Kinder, heut_ abend such` ich mir was aus.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  159
                                           'genre'  prerock-cabaret
                                        'filesize'  3747870
                                           'mtime'  1620561644
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 10 heut_ prerock cabaret
                                      'tag_artist'  Marlene Dietrich
                                     'tag_release'  Marlene Dietrich - Best of
                                       'tag_title'  Kinder, heut' abend such` ich mir was aus
                                             'bpm'  112.8
                                    'search_title'  'abend':5 'aus':10 'heut':3,4 'ich':7 'kinder':1,2 'mir':8 'such':6 'was':9
                                   'search_artist'  'dietrich':2 'marlene':1
                                  'search_release'  'best':3 'dietrich':2 'marlene':1 'of':4
                                     'search_rest'  '00instruments':1 'cabaret':5 'classical':2 'heut':3 'prerock':4
                                    'search_combo'  '00instruments':17 'abend':5A 'aus':10A 'best':15C 'cabaret':21 'classical':18 'dietrich':12B,14C 'heut':3A,4A,19 'ich':7A 'kinder':1A,2A 'marlene':11B,13C 'mir':8A 'of':16C 'prerock':20 'such':6A 'was':9A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['german', 'cabaret', 'female vocalists', 'oldies', 'deutsch']
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561643.515127  (2021-05-09 14:00:43)
                             'size'  3747870