======================== unified (from filesystem) ========================
                                         'bitrate'  '216.937'
                                        'duration'  '392'
                                          'artist'  'Apparat'
                                     'text_people'  ''
                                         'release'  'Multifunktionsebene'
                                           'title'  'Distance'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronica', 'idm', 'electronic', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic', 'techno', 'idm']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '9'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-glitch-calmer'
                                             'bpm'  '125.8'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:N\x13\x00\x00'                   PRIV(owner='AverageLevel', data=b'N\x13\x00\x00')
'PRIV:PeakValue:y~\x00\x00'                         PRIV(owner='PeakValue', data=b'y~\x00\x00')
'TALB' (Album/Movie/Show title)                     'Multifunktionsebene'
'TBPM' (BPM (beats per minute))                     '125.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-glitch-calmer'
'TDRC' (Recording time)                             '2001'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Distance'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Apparat'
'TRCK' (Track number/Position in set)               '7/9'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'techno', 'idm']
'TXXX:lastfmtags'                                   ['electronica', 'idm', 'electronic', 'experimental', 'ambient']
'TXXX:original release date'                        ['2001', '2001']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.57 dB'
'TXXX:replaygain_track_peak'                        '0.988105'

========================== row from database ==========================
                                              'id'  1343554
                                            'path'  /data/Music/Bulk/00poprockelectronic/Apparat/Multiefunktionsebene/Apparat - 07 - Distance.mp3
                                         'working'  None
                                         'bitrate'  216
                                    'duration_sec'  392
                                           'genre'  electronic-experimental-glitch-calmer
                                        'filesize'  7712702
                                           'mtime'  1636136264
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Multiefunktionsebene 07 electronic experimental glitch calmer
                                      'tag_artist'  Apparat
                                     'tag_release'  Multifunktionsebene
                                       'tag_title'  Distance
                                             'bpm'  125.8
                                    'search_title'  'distance':1
                                   'search_artist'  'apparat':1
                                  'search_release'  'multifunktionsebene':1
                                     'search_rest'  '00poprockelectronic':1 'calmer':6 'electronic':3 'experimental':4 'glitch':5 'multiefunktionsebene':2
                                    'search_combo'  '00poprockelectronic':4 'apparat':2B 'calmer':9 'distance':1A 'electronic':6 'experimental':7 'glitch':8 'multiefunktionsebene':5 'multifunktionsebene':3C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'idm', 'electronic', 'experimental', 'ambient']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic', 'techno', 'idm']

============================== file details ==============================
                                           'mtime'  1636136264.0346  (2021-11-05 19:17:44)
                             'size'  7712702