======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '291'
                                          'artist'  'Wassermann'
                                     'text_people'  ''
                                         'release'  'Fackeln im Sturm [Profan 017]'
                                           'title'  'Fackeln im Sturm Zwei'
                                           'quals'  ("['Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['techno', 'kompakt', 'electronic', 'minimal techno', 'minimal']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '130.6'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Preference:\x00\x00\x00'           'None'
'TALB' (Album/Movie/Show title)                     'Fackeln im Sturm [Profan 017]'
'TBPM' (BPM (beats per minute))                     '130.6'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Fackeln im Sturm Zwei'
'TKEY' (Initial key)                                '5A'
'TLEN' (Length)                                     '291000'
'TPE1' (Lead performer(s)/Soloist(s))               'Wassermann'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['techno', 'kompakt', 'electronic', 'minimal techno', 'minimal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.29 dB'
'TXXX:replaygain_track_peak'                        '0.995406'

========================== row from database ==========================
                                              'id'  765207
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Elektronikzeugs/grungermann - b1 fackeln im sturm zwei.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  291
                                           'genre'  electronic-unsorted
                                        'filesize'  7038146
                                           'mtime'  1620536715
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Elektronikzeugs grungermann b1 fackeln sturm zwei electronic unsorted
                                      'tag_artist'  Wassermann
                                     'tag_release'  Fackeln im Sturm [Profan 017]
                                       'tag_title'  Fackeln im Sturm Zwei
                                             'bpm'  130.6
                                    'search_title'  'fackeln':1 'im':2 'sturm':3 'zwei':4
                                   'search_artist'  'wassermann':1
                                  'search_release'  '017':6,7 'fackeln':1 'im':2 'profan':4,5 'sturm':3
                                     'search_rest'  'b1':3 'electronic':7 'elektronikzeugs':1 'fackeln':4 'grungermann':2 'sturm':5 'unsorted':8 'zwei':6
                                    'search_combo'  '017':11C,12C 'b1':15 'electronic':19 'elektronikzeugs':13 'fackeln':1A,6C,16 'grungermann':14 'im':2A,7C 'profan':9C,10C 'sturm':3A,8C,17 'unsorted':20 'wassermann':5B 'zwei':4A,18
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['techno', 'kompakt', 'electronic', 'minimal techno', 'minimal']
                                        'tag_date'  1997
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620536714.6649725  (2021-05-09 07:05:14)
                             'size'  7038146