======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '29'
                                          'artist'  'Die Conrads und Dieter Sueverkruep'
                                     'text_people'  ''
                                         'release'  'Lehrlinge zusammenhalten'
                                           'title'  'Was ein Lehrling alles lernt'
                                           'quals'  ("['Q-JZFKS-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '17'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '132.878'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 000001E3 000001A2 0000079A'
'COMM:iTunNORM:eng'                                 (' 000001E3 000001A2 0000079A 00000975 00002EE6 00002EE6 00002AA7 00002FC3 '
 '00002EE6 00002EE6')
'TALB' (Album/Movie/Show title)                     'Lehrlinge zusammenhalten'
'TBPM' (BPM (beats per minute))                     '132.878'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TIT2' (Title/songname/content description)         'Was ein Lehrling alles lernt'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Die Conrads und Dieter Sueverkruep'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '11/17'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:date'                                         '1969'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.06 dB'
'TXXX:replaygain_track_peak'                        '0.608017'

========================== row from database ==========================
                                              'id'  1383603
                                            'path'  /data/Music/Bulk/00localcharacter/Lehrlinge halten zusammen [Apprentices stick together]/11_-_Die_Conrads_und_Dieter_Sueverkruep_-_Was_ein_Lehrling_alles_lernt.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  29
                                           'genre'  loc-unsorted
                                        'filesize'  1144786
                                           'mtime'  1620401185
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter [Apprentices stick together] 11_ _Die_Conrads_und_Dieter_Sueverkruep_ _Was_ein_Lehrling_alles_lernt loc unsorted
                                      'tag_artist'  Die Conrads und Dieter Sueverkruep
                                     'tag_release'  Lehrlinge zusammenhalten
                                       'tag_title'  Was ein Lehrling alles lernt
                                             'bpm'  132.878
                                    'search_title'  'alles':4 'ein':2 'lehrling':3 'lernt':5 'was':1
                                   'search_artist'  'conrads':2 'die':1 'dieter':4 'sueverkruep':5 'und':3
                                  'search_release'  'lehrlinge':1 'zusammenhalten':2
                                     'search_rest'  '11':6 'alles':15 'apprentices':1,2 'conrads':8 'die':7 'dieter':10 'ein':13 'lehrling':14 'lernt':16 'loc':17 'stick':3 'sueverkruep':11 'together':4,5 'und':9 'unsorted':18 'was':12
                                    'search_combo'  '11':18 'alles':4A,27 'apprentices':13,14 'conrads':7B,20 'die':6B,19 'dieter':9B,22 'ein':2A,25 'lehrling':3A,26 'lehrlinge':11C 'lernt':5A,28 'loc':29 'stick':15 'sueverkruep':10B,23 'together':16,17 'und':8B,21 'unsorted':30 'was':1A,24 'zusammenhalten':12C
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620401184.667947  (2021-05-07 17:26:24)
                             'size'  1144786