======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '177'
                                          'artist'  'Max Woiski'
                                     'text_people'  ''
                                         'release'  'Cicodelico Obscure Gooves Vol. 30'
                                           'title'  'Bron Bron Calypso'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-OLDST-2', 'q-syn-1', 'q-bass-4', "
 "'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', 'q-drums-2', 'q-other-2', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['german', '60s', 'suriname', 'exotica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '25'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '100.9'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 0000025D 0000025D 000005E9 000005E9 00000000 00000000 00000000 00000000 '
 '00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Cicodelico Obscure Gooves Vol. 30'
'TBPM' (BPM (beats per minute))                     '100.9'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Bron Bron Calypso'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Max Woiski'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '25'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf54.63.104'
'TXXX:AverageLevel'                                 '3963'
'TXXX:DeviceConformanceTemplate'                    'L1'
'TXXX:IsVBR'                                        '0'
'TXXX:MediaFoundationVersion'                       '2.112'
'TXXX:PeakValue'                                    '20897'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:WM/EncodingTime'                              '18446744072062090240'
'TXXX:WM/MediaPrimaryClassID'                       '{D1607DBC-E323-4BE2-86A1-48A42A28441E}'
'TXXX:WM/Track'                                     '24'
'TXXX:WM/UniqueFileIdentifier'                      ';'
'TXXX:WMFSDKNeeded'                                 '0.0.0.0000'
'TXXX:WMFSDKVersion'                                '12.0.7600.16385'
'TXXX:lastfmtags'                                   ['german', '60s', 'suriname', 'exotica']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.47 dB'
'TXXX:replaygain_track_peak'                        '0.538403'

========================== row from database ==========================
                                              'id'  759954
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Cicodelico Obscure Gooves Vol. 30/25 Bron Bron Calypso.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  177
                                           'genre'  loc-unsorted
                                        'filesize'  4255725
                                           'mtime'  1622759241
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 25 loc unsorted
                                      'tag_artist'  Max Woiski
                                     'tag_release'  Cicodelico Obscure Gooves Vol. 30
                                       'tag_title'  Bron Bron Calypso
                                             'bpm'  100.9
                                    'search_title'  'bron':1 'calypso':2
                                   'search_artist'  'max':1 'woiski':2
                                  'search_release'  '30':6 'cicodelico':1 'gooves':3 'obscure':2 'vol':4,5
                                     'search_rest'  '25':1 'loc':2 'unsorted':3
                                    'search_combo'  '25':11 '30':10C 'bron':1A 'calypso':2A 'cicodelico':5C 'gooves':7C 'loc':12 'max':3B 'obscure':6C 'unsorted':13 'vol':8C,9C 'woiski':4B
                                    'tag_tracknum'  25
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['german', '60s', 'suriname', 'exotica']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622759241.3811798  (2021-06-04 00:27:21)
                             'size'  4255725