======================== unified (from filesystem) ========================
                                         'bitrate'  '164.643'
                                        'duration'  '61'
                                          'artist'  'Bilchi-Maa Davaa'
                                     'text_people'  ''
                                         'release'  'Deep in the Heart of Tuva'
                                           'title'  'Hvvmeo Lullaby'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', 'Q-UNU-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['throat singing', 'folk', 'tuva', 'alternative', 'shirley and spinoza']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  '20'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-russia-tuva'
                                             'bpm'  '139.754'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Deep in the Heart of Tuva'
'TBPM' (BPM (beats per minute))                     '139.754'
'TCON' (Content type, a.k.a. Genre)                 'loc-russia-tuva'
'TDRC' (Recording time)                             '1996'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Hvvmeo Lullaby'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bilchi-Maa Davaa'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '06/20'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['throat singing', 'folk', 'tuva', 'alternative', 'shirley and spinoza']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.17 dB'
'TXXX:replaygain_track_peak'                        '0.596766'

========================== row from database ==========================
                                              'id'  1390657
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Deep on the hear of Tuva/06. Bilchi-Maa Davaa - Hццmeп Lullaby.mp3
                                         'working'  None
                                         'bitrate'  164
                                    'duration_sec'  61
                                           'genre'  loc-russia-tuva
                                        'filesize'  1273482
                                           'mtime'  1621629138
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia on hear 06. Hццmeп loc russia tuva
                                      'tag_artist'  Bilchi-Maa Davaa
                                     'tag_release'  Deep in the Heart of Tuva
                                       'tag_title'  Hvvmeo Lullaby
                                             'bpm'  139.754
                                    'search_title'  'hvvmeo':1 'lullaby':2
                                   'search_artist'  'bilchi':1 'bilchimaa':3 'davaa':4 'maa':2
                                  'search_release'  'deep':1 'heart':4 'in':2 'of':5 'the':3 'tuva':6
                                     'search_rest'  '00asia':1 '06':4,5 'hccmep':7 'hear':3 'hццmeп':6 'loc':8 'on':2 'russia':9 'tuva':10
                                    'search_combo'  '00asia':13 '06':16,17 'bilchi':3B 'bilchimaa':5B 'davaa':6B 'deep':7C 'hccmep':19 'hear':15 'heart':10C 'hvvmeo':1A 'hццmeп':18 'in':8C 'loc':20 'lullaby':2A 'maa':4B 'of':11C 'on':14 'russia':21 'the':9C 'tuva':12C,22
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['throat singing', 'folk', 'tuva', 'alternative', 'shirley and spinoza']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629137.5134826  (2021-05-21 22:32:17)
                             'size'  1273482