======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '127'
                                          'artist'  'Shaktar Shulban'
                                     'text_people'  ''
                                         'release'  'Deep In The Heart Of Tuva'
                                           'title'  'Demonstration of Sygyt and Kar'
                                           'quals'  ("['Q-BUSY-3', 'Q-GRIT-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-MIXBEAT-1', 'Q-SYN-1', 'Q-OLDST-3', 'Q-HAP-2', 'Q-UNU-3', 'Q-PLAY-2', "
 "'Q-CHART-2', 'q-bass-1', 'q-drums-1', 'q-other-3', 'q-piano-1', "
 "'q-vocals-4']")
                                      'lastfmtags'  "['throat singing', 'tuva', 'folk', 'mongolian', 'world']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-russia-tuva'
                                             'bpm'  '139.466'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'xXx'
'TALB' (Album/Movie/Show title)                     'Deep In The Heart Of Tuva'
'TBPM' (BPM (beats per minute))                     '139.466'
'TCON' (Content type, a.k.a. Genre)                 'loc-russia-tuva'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Demonstration of Sygyt and Kar'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Shaktar Shulban'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['throat singing', 'tuva', 'folk', 'mongolian', 'world']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_album_gain'                        '+2.17 dB'
'TXXX:replaygain_album_peak'                        '0.564806'
'TXXX:replaygain_track_gain'                        '+2.17 dB'
'TXXX:replaygain_track_peak'                        '0.564806'

========================== row from database ==========================
                                              'id'  1536548
                                            'path'  /data/Music/Bulk/00localcharacter/VA. World 1： Trad/Deep in the Heart of Tuva ~ Cowboy Music from the Wild East/Deep in the Heart of Tuva)- 07 - shaktar shulban - deep in the heart of tuva - demonstration of sygyt and kargyraa.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  127
                                           'genre'  loc-russia-tuva
                                        'filesize'  3068947
                                           'mtime'  1643967907
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA. World 1： Trad in the ~ Cowboy Music from the Wild East in the Tuva) 07 shaktar shulban deep in the heart tuva demonstration sygyt kargyraa loc russia tuva
                                      'tag_artist'  Shaktar Shulban
                                     'tag_release'  Deep In The Heart Of Tuva
                                       'tag_title'  Demonstration of Sygyt and Kar
                                             'bpm'  139.466
                                    'search_title'  'and':4 'demonstration':1 'kar':5 'of':2 'sygyt':3
                                   'search_artist'  'shaktar':1 'shulban':2
                                  'search_release'  'deep':1 'heart':4 'in':2 'of':5 'the':3 'tuva':6
                                     'search_rest'  '1':4,5,6 'cowboy':10 'deep':19 'demonstration':21 'east':14 'from':12 'heart':20 'in':8 'kargyraa':23 'loc':24 'music':11 'russia':25 'shaktar':17 'shulban':18 'sygyt':22 'the':9 'trad':7 'tuva':15,16 'va':1,2 'wild':13 'world':3
                                    'search_combo'  '1':17,18,19 'and':4A 'cowboy':23 'deep':8C,32 'demonstration':1A,34 'east':27 'from':25 'heart':11C,33 'in':9C,21 'kar':5A 'kargyraa':36 'loc':37 'music':24 'of':2A,12C 'russia':38 'shaktar':6B,30 'shulban':7B,31 'sygyt':3A,35 'the':10C,22 'trad':20 'tuva':13C,28,29 'va':14,15 'wild':26 'world':16
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-BUSY-3', 'Q-GRIT-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', 'Q-MIXBEAT-1', 'Q-SYN-1', 'Q-OLDST-3', 'Q-HAP-2', 'Q-UNU-3', 'Q-PLAY-2', 'Q-CHART-2', 'q-bass-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4']
                                      'lastfmtags'  ['throat singing', 'tuva', 'folk', 'mongolian', 'world']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1643967906.6095948  (2022-02-04 10:45:06)
                             'size'  3068947