======================== unified (from filesystem) ========================
                                         'bitrate'  '187.775'
                                        'duration'  '176'
                                          'artist'  'Tuvans'
                                     'text_people'  ''
                                         'release'  'TUVA - Voice from the Center of Asia (Smithsonian Folkways)'
                                           'title'  'Medley of various throat-singing styles'
                                           '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-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['throat singing', 'tuva', 'folk', 'world', 'traditional']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'loc-russia-tuva'
                                             'bpm'  '101.462'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'TUVA - Voice from the Center of Asia (Smithsonian Folkways)'
'TBPM' (BPM (beats per minute))                     '101.462'
'TCON' (Content type, a.k.a. Genre)                 'loc-russia-tuva'
'TDRC' (Recording time)                             '1987'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Medley of various throat-singing styles'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Various Artists'
'TPE2' (Band/orchestra/accompaniment)               'Tuvans'
'TRCK' (Track number/Position in set)               '17'
'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', 'tuva', 'folk', 'world', 'traditional']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                        '+4.12 dB'
'TXXX:replaygain_track_peak'                        '0.577811'

========================== row from database ==========================
                                              'id'  1398912
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Tuvans - Tuva - Voice From The Center Of Asia (Smithsonian Folkways)/17 - Medley of various throat-singing styles.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  176
                                           'genre'  loc-russia-tuva
                                        'filesize'  4143495
                                           'mtime'  1621629186
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia From The Of 17 loc russia tuva
                                      'tag_artist'  Tuvans
                                     'tag_release'  TUVA - Voice from the Center of Asia (Smithsonian Folkways)
                                       'tag_title'  Medley of various throat-singing styles
                                             'bpm'  101.462
                                    'search_title'  'medley':1 'of':2 'singing':5 'styles':7 'throat':4 'throatsinging':6 'various':3
                                   'search_artist'  'tuvans':1
                                  'search_release'  'asia':7 'center':5 'folkways':10,11 'from':3 'of':6 'smithsonian':8,9 'the':4 'tuva':1 'voice':2
                                     'search_rest'  '00asia':1 'from':2 'loc':5 'of':4 'russia':6 'the':3 'tuva':7
                                    'search_combo'  '00asia':20 'asia':15C 'center':13C 'folkways':18C,19C 'from':11C,21 'loc':24 'medley':1A 'of':2A,14C,23 'russia':25 'singing':5A 'smithsonian':16C,17C 'styles':7A 'the':12C,22 'throat':4A 'throatsinging':6A 'tuva':9C,26 'tuvans':8B 'various':3A 'voice':10C
                                    'tag_tracknum'  17
                                      'num_images'  0
                                             'key'  1A
                                           '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['throat singing', 'tuva', 'folk', 'world', 'traditional']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629186.0543385  (2021-05-21 22:33:06)
                             'size'  4143495