======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '67'
                                          'artist'  'Rolf Zukowski'
                                     'text_people'  ''
                                         'release'  'KINDERLIEDER'
                                           'title'  'Alle meine Entchen'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-2', 'q-syn-1', "
 "'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-1', 'q-chart-2', 'q-drums-1', "
 "'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['kinderlieder', 'deutsch', 'german', 'children', 'black metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-childrensmusic or educational'
                                             'bpm'  '109.8'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'KINDERLIEDER'
'TBPM' (BPM (beats per minute))                     '109.8'
'TCON' (Content type, a.k.a. Genre)                 'set-th-childrensmusic or educational'
'TIT2' (Title/songname/content description)         'Alle meine Entchen'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rolf Zukowski'
'TSOA' (Album sort order)                           '0'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['kinderlieder', 'deutsch', 'german', 'children', 'black metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.73 dB'
'TXXX:replaygain_track_peak'                        '0.478533'

========================== row from database ==========================
                                              'id'  1333535
                                            'path'  /data/Music/Bulk/00spent/KINDERLIEDER/Rolf Zukowski - Alle meine Entchen.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  67
                                           'genre'  set-th-childrensmusic or educational
                                        'filesize'  1087140
                                           'mtime'  1676042911
                                   'redo_metaread'  0
                                        'rest_str'   00spent set th childrensmusic or educational
                                      'tag_artist'  Rolf Zukowski
                                     'tag_release'  KINDERLIEDER
                                       'tag_title'  Alle meine Entchen
                                             'bpm'  109.8
                                    'search_title'  'alle':1 'entchen':3 'meine':2
                                   'search_artist'  'rolf':1 'zukowski':2
                                  'search_release'  'kinderlieder':1
                                     'search_rest'  '00spent':1 'childrensmusic':4 'educational':6 'or':5 'set':2 'th':3
                                    'search_combo'  '00spent':7 'alle':1A 'childrensmusic':10 'educational':12 'entchen':3A 'kinderlieder':6C 'meine':2A 'or':11 'rolf':4B 'set':8 'th':9 'zukowski':5B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-2', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-1', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['kinderlieder', 'deutsch', 'german', 'children', 'black metal']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676042911.1371133  (2023-02-10 16:28:31)
                             'size'  1087140