======================== unified (from filesystem) ========================
                                         'bitrate'  '176.765'
                                        'duration'  '67'
                                          'artist'  'Drudkh'
                                     'text_people'  ''
                                         'release'  'Microcosmos'
                                           'title'  "Widow's Grief"
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['folk metal', 'pagan metal', 'black metal', 'atmospheric black metal', "
 "'ukrainian']")
                                     'discogstags'  "['rock', 'folk, world, & country', 'atmospheric black metal', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '6'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '138.892'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Microcosmos'
'TBPM' (BPM (beats per minute))                     '138.892'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         "Widow's Grief"
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Drudkh'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '6/6'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'folk, world, & country', 'atmospheric black metal', 'folk']
'TXXX:lastfmtags'                                   ['folk metal',
 'pagan metal',
 'black metal',
 'atmospheric black metal',
 'ukrainian']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.490168'

========================== row from database ==========================
                                              'id'  1518855
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Drudkh/Drudkh - Microcosmos - 06 - Widow_s Grief.mp3
                                         'working'  None
                                         'bitrate'  176
                                    'duration_sec'  67
                                           'genre'  eid-metal
                                        'filesize'  1498767
                                           'mtime'  1620300618
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 06 Widow_s eid metal
                                      'tag_artist'  Drudkh
                                     'tag_release'  Microcosmos
                                       'tag_title'  Widow's Grief
                                             'bpm'  138.892
                                    'search_title'  'grief':4 's':2 'widow':1 'widows':3
                                   'search_artist'  'drudkh':1
                                  'search_release'  'microcosmos':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':5 'metal':6 's':4 'widow':3
                                    'search_combo'  '00dwimp':7 '00metal':8 'drudkh':5B 'eid':11 'grief':4A 'metal':12 'microcosmos':6C 's':2A,10 'widow':1A,9 'widows':3A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-1', 'q-bass-1', 'q-grit-4']
                                      'lastfmtags'  ['folk metal', 'pagan metal', 'black metal', 'atmospheric black metal', 'ukrainian']
                                        'tag_date'  2009
                                     'discogstags'  ['rock', 'folk, world, & country', 'atmospheric black metal', 'folk']

============================== file details ==============================
                                           'mtime'  1620300618.0986083  (2021-05-06 13:30:18)
                             'size'  1498767