======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '301'
                                          'artist'  'Nina Hagen'
                                     'text_people'  ''
                                         'release'  'Eisern Union! CD-Single'
                                           'title'  'Eisern Union! (Stadion Version)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['german', 'new wave', 'post punk', 'punk', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '95.664'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Eisern Union! CD-Single'
'TBPM' (BPM (beats per minute))                     '95.664'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Eisern Union! (Stadion Version)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nina Hagen'
'TRCK' (Track number/Position in set)               '02'
'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:lastfmtags'                                   ['german', 'new wave', 'post punk', 'punk', 'female vocalists']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.04 dB'
'TXXX:replaygain_track_peak'                        '0.492060'

========================== row from database ==========================
                                              'id'  204641
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Nina Hagen/Nina Hagen-Spare Tracks/Nina Hagen - Eisern Union ! (Stadion Version).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  301
                                           'genre'  rock-unsorted
                                        'filesize'  4823040
                                           'mtime'  1636400391
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Spare Tracks rock unsorted
                                      'tag_artist'  Nina Hagen
                                     'tag_release'  Eisern Union! CD-Single
                                       'tag_title'  Eisern Union! (Stadion Version)
                                             'bpm'  95.664
                                    'search_title'  'eisern':1 'stadion':3,4 'union':2 'version':5,6
                                   'search_artist'  'hagen':2 'nina':1
                                  'search_release'  'cd':3 'cdsingle':5 'eisern':1 'single':4 'union':2
                                     'search_rest'  '00singer':1 'eos':3 'rock':6 'songwriter':2 'spare':4 'tracks':5 'unsorted':7
                                    'search_combo'  '00singer':14 'cd':11C 'cdsingle':13C 'eisern':1A,9C 'eos':16 'hagen':8B 'nina':7B 'rock':19 'single':12C 'songwriter':15 'spare':17 'stadion':3A,4A 'tracks':18 'union':2A,10C 'unsorted':20 'version':5A,6A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['german', 'new wave', 'post punk', 'punk', 'female vocalists']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400391.3747005  (2021-11-08 20:39:51)
                             'size'  4823040