======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '80'
                                          'artist'  'Floh de Cologne'
                                     'text_people'  ''
                                         'release'  'Lehrlinge zusammenhalten'
                                           'title'  'Hallo Stift'
                                           'quals'  ("['Q-JZFKS-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'krautrock', 'progressive rock', 'political', 'left wing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  '17'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '145.685'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 0000012F 000000FA 00000ADB'
'COMM:iTunNORM:eng'                                 (' 0000012F 000000FA 00000ADB 00000953 0000DB89 0000DB89 000040EA 00003EC0 '
 '00000045 00009CE3')
'TALB' (Album/Movie/Show title)                     'Lehrlinge zusammenhalten'
'TBPM' (BPM (beats per minute))                     '145.685'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TIT2' (Title/songname/content description)         'Hallo Stift'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Floh de Cologne'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '02/17'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:date'                                         '1969'
'TXXX:lastfmtags'                                   ['german', 'krautrock', 'progressive rock', 'political', 'left wing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.37 dB'
'TXXX:replaygain_track_peak'                        '0.734671'

========================== row from database ==========================
                                              'id'  1388632
                                            'path'  /data/Music/Bulk/00localcharacter/Lehrlinge halten zusammen [Apprentices stick together]/02_-_Floh_de_Cologne_-_Hallo_Stift.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  80
                                           'genre'  loc-unsorted
                                        'filesize'  2350220
                                           'mtime'  1620401172
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter [Apprentices stick together] 02_ _Floh_de_Cologne_ _Hallo_Stift loc unsorted
                                      'tag_artist'  Floh de Cologne
                                     'tag_release'  Lehrlinge zusammenhalten
                                       'tag_title'  Hallo Stift
                                             'bpm'  145.685
                                    'search_title'  'hallo':1 'stift':2
                                   'search_artist'  'cologne':3 'de':2 'floh':1
                                  'search_release'  'lehrlinge':1 'zusammenhalten':2
                                     'search_rest'  '02':6 'apprentices':1,2 'cologne':9 'de':8 'floh':7 'hallo':10 'loc':12 'stick':3 'stift':11 'together':4,5 'unsorted':13
                                    'search_combo'  '02':13 'apprentices':8,9 'cologne':5B,16 'de':4B,15 'floh':3B,14 'hallo':1A,17 'lehrlinge':6C 'loc':19 'stick':10 'stift':2A,18 'together':11,12 'unsorted':20 'zusammenhalten':7C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['german', 'krautrock', 'progressive rock', 'political', 'left wing']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620401171.7609468  (2021-05-07 17:26:11)
                             'size'  2350220