======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '55'
                                          'artist'  'Delta Zangvogels'
                                     'text_people'  ''
                                         'release'  'Deltas Gids voor Zangvogels'
                                           'title'  'Bonte Vliegenvanger'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '43'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'nonmusic-fragments-sounds and sfx'
                                             'bpm'  '121.774'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:\x95\x07\x00\x00'                PRIV(owner='AverageLevel', data=b'\x95\x07\x00\x00')
'PRIV:PeakValue:¢H\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa2H\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Deltas Gids voor Zangvogels'
'TBPM' (BPM (beats per minute))                     '121.774'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-fragments-sounds and sfx'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Bonte Vliegenvanger'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Delta Zangvogels'
'TPE2' (Band/orchestra/accompaniment)               'Delta Zangvogels'
'TRCK' (Track number/Position in set)               '43'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+5.00 dB'
'TXXX:replaygain_track_peak'                        '0.239240'

========================== row from database ==========================
                                              'id'  943207
                                            'path'  /data/Music/Bulk/0nonmusic/00sounds/Zangvogels/Delta Zangvogels - Bonte Vliegenvanger.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  55
                                           'genre'  nonmusic-fragments-sounds and sfx
                                        'filesize'  1332356
                                           'mtime'  1621696439
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00sounds nonmusic fragments sounds and sfx
                                      'tag_artist'  Delta Zangvogels
                                     'tag_release'  Deltas Gids voor Zangvogels
                                       'tag_title'  Bonte Vliegenvanger
                                             'bpm'  121.774
                                    'search_title'  'bonte':1 'vliegenvanger':2
                                   'search_artist'  'delta':1 'zangvogels':2
                                  'search_release'  'deltas':1 'gids':2 'voor':3 'zangvogels':4
                                     'search_rest'  '00sounds':2 '0nonmusic':1 'and':6 'fragments':4 'nonmusic':3 'sfx':7 'sounds':5
                                    'search_combo'  '00sounds':10 '0nonmusic':9 'and':14 'bonte':1A 'delta':3B 'deltas':5C 'fragments':12 'gids':6C 'nonmusic':11 'sfx':15 'sounds':13 'vliegenvanger':2A 'voor':7C 'zangvogels':4B,8C
                                    'tag_tracknum'  43
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696438.7556753  (2021-05-22 17:13:58)
                             'size'  1332356