======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '249'
                                          'artist'  'Rechenzentrum'
                                     'text_people'  ''
                                         'release'  'Landschaft Nach Der Schlacht'
                                           'title'  'Tal Von Oben'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['german', 'idm', 'electronic', 'experimental', 'minimal']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '105.6'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Landschaft Nach Der Schlacht'
'TBPM' (BPM (beats per minute))                     '105.6'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Tal Von Oben'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rechenzentrum'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['german', 'idm', 'electronic', 'experimental', 'minimal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.59 dB'
'TXXX:replaygain_track_peak'                        '0.998790'

========================== row from database ==========================
                                              'id'  1335059
                                            'path'  /data/Music/Bulk/00poprockelectronic/Rechenzentrum/Landschaft nach der Schlacht/Rechenzentrum - Landschaft Nach Der Schlacht - 03 - Tal Von Oben.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  249
                                           'genre'  electronic-experimental
                                        'filesize'  7988918
                                           'mtime'  1636917517
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic nach der 03 electronic experimental
                                      'tag_artist'  Rechenzentrum
                                     'tag_release'  Landschaft Nach Der Schlacht
                                       'tag_title'  Tal Von Oben
                                             'bpm'  105.6
                                    'search_title'  'oben':3 'tal':1 'von':2
                                   'search_artist'  'rechenzentrum':1
                                  'search_release'  'der':3 'landschaft':1 'nach':2 'schlacht':4
                                     'search_rest'  '00poprockelectronic':1 'der':3 'electronic':4 'experimental':5 'nach':2
                                    'search_combo'  '00poprockelectronic':9 'der':7C,11 'electronic':12 'experimental':13 'landschaft':5C 'nach':6C,10 'oben':3A 'rechenzentrum':4B 'schlacht':8C 'tal':1A 'von':2A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['german', 'idm', 'electronic', 'experimental', 'minimal']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636917516.6493945  (2021-11-14 20:18:36)
                             'size'  7988918