======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '251'
                                          'artist'  'Tanzwut'
                                     'text_people'  ''
                                         'release'  'Tanzwut'
                                           'title'  'Augen zu'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'folk metal', 'industrial', 'medieval', 'mittelalter']"
                                     'discogstags'  "['electronic', 'rock', 'folk rock', 'electro']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'eid-metal-folk'
                                             'bpm'  '103.325'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '                            \x06'
'COMM:iTunNORM:eng'                                 (' 00000CD3 00000D17 00003D88 00003BFB 0002BF65 0002BF65 00008000 00007F6B '
 '0002BF65 00030D85')
'TALB' (Album/Movie/Show title)                     'Tanzwut'
'TBPM' (BPM (beats per minute))                     '103.325'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-folk'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Augen zu'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tanzwut'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'rock', 'folk rock', 'electro']
'TXXX:lastfmtags'                                   ['german', 'folk metal', 'industrial', 'medieval', 'mittelalter']
'TXXX:original release date'                        ['1999', '1999']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+7.01 dB'
'TXXX:replaygain_track_peak'                        '0.199947'

========================== row from database ==========================
                                              'id'  1397041
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Tanzwut/Tanzwut/06 Augen zu.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  251
                                           'genre'  eid-metal-folk
                                        'filesize'  4032178
                                           'mtime'  1620301761
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 06 eid metal folk
                                      'tag_artist'  Tanzwut
                                     'tag_release'  Tanzwut
                                       'tag_title'  Augen zu
                                             'bpm'  103.325
                                    'search_title'  'augen':1 'zu':2
                                   'search_artist'  'tanzwut':1
                                  'search_release'  'tanzwut':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':3 'folk':5 'metal':4
                                    'search_combo'  '00dwimp':5 '00metal':6 'augen':1A 'eid':7 'folk':9 'metal':8 'tanzwut':3B,4C 'zu':2A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['german', 'folk metal', 'industrial', 'medieval', 'mittelalter']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic', 'rock', 'folk rock', 'electro']

============================== file details ==============================
                                           'mtime'  1620301760.8435676  (2021-05-06 13:49:20)
                             'size'  4032178