======================== unified (from filesystem) ========================
                                         'bitrate'  '151.753'
                                        'duration'  '318'
                                          'artist'  'Rammstein'
                                     'text_people'  ''
                                         'release'  'progsoup 53'
                                           'title'  'Rammlied'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['industrial metal', 'german', 'industrial', 'metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  '11'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '140.335'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00002449 00001FAC 0000BABB'
'COMM:iTunNORM:eng'                                 (' 00002449 00001FAC 0000BABB 0000AC71 00022978 0004A364 00008000 00008000 '
 '0000EA49 0000EA1A')
'MCDI' (Music CD identifier)                        MCDI(data=b'\x00840ace0b\x00')
'TALB' (Album/Movie/Show title)                     'progsoup 53'
'TBPM' (BPM (beats per minute))                     '140.335'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'Encoded with FreeRIP'
'TIT2' (Title/songname/content description)         'Rammlied'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rammstein'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '17/11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['industrial metal', 'german', 'industrial', 'metal', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.34 dB'
'TXXX:replaygain_track_peak'                        '0.429920'

========================== row from database ==========================
                                              'id'  1416393
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 53/3005 rammstein -  Rammlied.mp3
                                         'working'  None
                                         'bitrate'  151
                                    'duration_sec'  318
                                           'genre'  rock-cppex-progressive
                                        'filesize'  6092626
                                           'mtime'  1620737563
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 3005 rammstein rock cppex progressive
                                      'tag_artist'  Rammstein
                                     'tag_release'  progsoup 53
                                       'tag_title'  Rammlied
                                             'bpm'  140.335
                                    'search_title'  'rammlied':1
                                   'search_artist'  'rammstein':1
                                  'search_release'  '53':2 'progsoup':1
                                     'search_rest'  '3005':3 'classicprogpsy':1 'cppex':6 'progressive':7 'progsoup':2 'rammstein':4 'rock':5
                                    'search_combo'  '3005':7 '53':4C 'classicprogpsy':5 'cppex':10 'progressive':11 'progsoup':3C,6 'rammlied':1A 'rammstein':2B,8 'rock':9
                                    'tag_tracknum'  17
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['industrial metal', 'german', 'industrial', 'metal', 'rock']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737563.034415  (2021-05-11 14:52:43)
                             'size'  6092626