======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '160'
                                          'artist'  'Stark Treiben'
                                     'text_people'  ''
                                         'release'  'New IV'
                                           'title'  'Der Apfel'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['industrial metal', 'metal', 'electronic', 'industrial', 'stiefelchenmusik']"
                                     'discogstags'  "['rock', 'industrial', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '068'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '100.207'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'B\x00+\x009\x006\x00+\x005\x004\x00C\x003\x00+\x009\x002\x001\x003\x00+\x00D\x009\x00B\x003\x00+\x001\x000\x008\x00F\x004\x00+\x001\x004\x000\x00A\x004\x00+\x001\x007\x007\x006\x003\x00+\x001\x00A\x004\x00D\x005\x00+\x001\x00D\x007\x008\x009\x00+\x002\x002\x008\x00B\x000\x00+\x002\x007\x00E\x00B\x00A\x00+\x002\x00C\x003\x00A\x00F\x00\x00\x00')
'PRIV:AverageLevel:{\x1e\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x1e\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'New IV'
'TBPM' (BPM (beats per minute))                     '100.207'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TIT2' (Title/songname/content description)         'Der Apfel'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '161000'
'TPE1' (Lead performer(s)/Soloist(s))               'Stark Treiben'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '068'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'industrial', 'heavy metal']
'TXXX:lastfmtags'                                   ['industrial metal', 'metal', 'electronic', 'industrial', 'stiefelchenmusik']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                        '-0.86 dB'
'TXXX:replaygain_track_peak'                        '0.403123'

========================== row from database ==========================
                                              'id'  1395212
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Metal Compilation - New IV/068.Stark Treiben - Der Apfel.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  160
                                           'genre'  eid-metal
                                        'filesize'  2578076
                                           'mtime'  1620301282
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Metal Compilation 068.Stark eid metal
                                      'tag_artist'  Stark Treiben
                                     'tag_release'  New IV
                                       'tag_title'  Der Apfel
                                             'bpm'  100.207
                                    'search_title'  'apfel':2 'der':1
                                   'search_artist'  'stark':1 'treiben':2
                                  'search_release'  'iv':2 'new':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '068':5 '068stark':7 'compilation':4 'eid':8 'metal':3 'stark':6
                                    'search_combo'  '00dwimp':7 '00metal':8 '068':11 '068stark':13 'apfel':2A 'compilation':10 'der':1A 'eid':14 'iv':6C 'metal':9 'new':5C 'stark':3B,12 'treiben':4B
                                    'tag_tracknum'  68
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['industrial metal', 'metal', 'electronic', 'industrial', 'stiefelchenmusik']
                                        'tag_date'  
                                     'discogstags'  ['rock', 'industrial', 'heavy metal']

============================== file details ==============================
                                           'mtime'  1620301281.9095285  (2021-05-06 13:41:21)
                             'size'  2578076