======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '167'
                                          'artist'  'The Rollicks'
                                     'text_people'  ''
                                         'release'  'Tape No082 - Instrumental Sounds (Part III)'
                                           'title'  'Das Totenschiff'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['beat', 'derivative', 'rhythm and blues', 'oldies', '60s']"
                                     'discogstags'  "['beat', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '135.5'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'http://garagetapes.blogspot.com/'
'TALB' (Album/Movie/Show title)                     'Tape No082 - Instrumental Sounds (Part III)'
'TBPM' (BPM (beats per minute))                     '135.5'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Das Totenschiff'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Rollicks'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '12'
'TXXX:COUNTRY'                                      'DE'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['beat', 'rock']
'TXXX:lastfmtags'                                   ['beat', 'derivative', 'rhythm and blues', 'oldies', '60s']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+24.05 dB'
'TXXX:replaygain_track_peak'                        '0.027577'
'TXXX:tracknum'                                     '12'

========================== row from database ==========================
                                              'id'  502737
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT082/12 - The Rollicks - Das Totenschiff (1965 DE).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  167
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  4088330
                                           'mtime'  1620383653
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT082 12 (1965 DE) rock gr garage;set pl garagetapes
                                      'tag_artist'  The Rollicks
                                     'tag_release'  Tape No082 - Instrumental Sounds (Part III)
                                       'tag_title'  Das Totenschiff
                                             'bpm'  135.5
                                    'search_title'  'das':1 'totenschiff':2
                                   'search_artist'  'rollicks':2 'the':1
                                  'search_release'  'iii':7,8 'instrumental':3 'no082':2 'part':5,6 'sounds':4 'tape':1
                                     'search_rest'  '1965':6,7 'blogspot':2 'com':3 'de':8,9 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt082':5 'pl':16 'rock':10 'set':13,15
                                    'search_combo'  '1965':18,19 'blogspot':14 'com':15 'das':1A 'de':20,21 'garage':24,26 'garagetapes':13,29 'garagetapesblogspotcom':16 'gr':23 'gt082':17 'iii':11C,12C 'instrumental':7C 'no082':6C 'part':9C,10C 'pl':28 'rock':22 'rollicks':4B 'set':25,27 'sounds':8C 'tape':5C 'the':3B 'totenschiff':2A
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['beat', 'derivative', 'rhythm and blues', 'oldies', '60s']
                                        'tag_date'  1965
                                     'discogstags'  ['beat', 'rock']

============================== file details ==============================
                                           'mtime'  1620383652.9417987  (2021-05-07 12:34:12)
                             'size'  4088330