======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '280'
                                          'artist'  'Sandy'
                                     'text_people'  ''
                                         'release'  'TÜRKÇE MP3'
                                           'title'  'El Helm (HD)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-2', 'Q-GRIT-2', 'Q-PLAY-2', 'q-bass-2', "
 "'Q-CHART-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['mpb', 'alternative', 'piano', 'singer-songwriter', 'folk', 'acoustic']"
                                     'discogstags'  "['electronic', 'euro house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-m-turkey'
                                             'bpm'  '127.9'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'TÜRKÇE MP3'
'TBPM' (BPM (beats per minute))                     '127.9'
'TCON' (Content type, a.k.a. Genre)                 'loc-m-turkey'
'TIT2' (Title/songname/content description)         'El Helm (HD)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sandy'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf54.63.104'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'euro house']
'TXXX:lastfmtags'                                   ['mpb', 'alternative', 'piano', 'singer-songwriter', 'folk', 'acoustic']
'TXXX:q-bass'                                       '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.59 dB'
'TXXX:replaygain_track_peak'                        '0.543052'

========================== row from database ==========================
                                              'id'  1486516
                                            'path'  /data/Music/Bulk/00localcharacter/TÜRKÇE MP3/Sandy - El Helm (HD).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  280
                                           'genre'  loc-m-turkey
                                        'filesize'  6741343
                                           'mtime'  1636300937
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter loc turkey
                                      'tag_artist'  Sandy
                                     'tag_release'  TÜRKÇE MP3
                                       'tag_title'  El Helm (HD)
                                             'bpm'  127.9
                                    'search_title'  'el':1 'hd':3,4 'helm':2
                                   'search_artist'  'sandy':1
                                  'search_release'  'mp3':3 'turkce':1,2
                                     'search_rest'  'loc':1 'turkey':2
                                    'search_combo'  'el':1A 'hd':3A,4A 'helm':2A 'loc':9 'mp3':8C 'sandy':5B 'turkce':6C,7C 'turkey':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-1', 'q-other-2', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-2']
                                      'lastfmtags'  ['mpb', 'alternative', 'piano', 'singer-songwriter', 'folk', 'acoustic']
                                        'tag_date'  
                                     'discogstags'  ['electronic', 'euro house']

============================== file details ==============================
                                           'mtime'  1636300936.559485  (2021-11-07 17:02:16)
                             'size'  6741343