======================== unified (from filesystem) ========================
                                         'bitrate'  '175.971'
                                        'duration'  '186'
                                          'artist'  'GABRIEL & DRESDEN'
                                     'text_people'  ''
                                         'release'  'Energy FM 104.2'
                                           'title'  'Tracking Treasure Down (Radio Edit)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  ("['dance', 'trance', 'progressive trance', 'house', 'progressive house', "
 "'electronic']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '134.9'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Energy FM 104.2'
'TBPM' (BPM (beats per minute))                     '134.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TENC' (Encoded by)                                 'ShpurloS'
'TIT2' (Title/songname/content description)         'Tracking Treasure Down (Radio Edit)'
'TKEY' (Initial key)                                '1A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'GABRIEL & DRESDEN'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dance',
 'trance',
 'progressive trance',
 'house',
 'progressive house',
 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.10 dB'
'TXXX:replaygain_track_peak'                        '0.632155'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='http://www.nowals.ru')

========================== row from database ==========================
                                              'id'  1306037
                                            'path'  /data/Music/Bulk/00poprockelectronic/Energy FM 104.2 [OLD]/GABRIEL & DRESDEN - Tracking Treasure Down (Radio Edit).mp3
                                         'working'  None
                                         'bitrate'  176
                                    'duration_sec'  186
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  4096089
                                           'mtime'  1621696232
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [OLD] electronic generic or radio dance
                                      'tag_artist'  GABRIEL & DRESDEN
                                     'tag_release'  Energy FM 104.2
                                       'tag_title'  Tracking Treasure Down (Radio Edit)
                                             'bpm'  134.9
                                    'search_title'  'down':3 'edit':6,7 'radio':4,5 'tracking':1 'treasure':2
                                   'search_artist'  'dresden':2 'gabriel':1
                                  'search_release'  '104':3 '1042':5 '2':4 'energy':1 'fm':2
                                     'search_rest'  '00poprockelectronic':1 'dance':8 'electronic':4 'generic':5 'old':2,3 'or':6 'radio':7
                                    'search_combo'  '00poprockelectronic':15 '104':12C '1042':14C '2':13C 'dance':22 'down':3A 'dresden':9B 'edit':6A,7A 'electronic':18 'energy':10C 'fm':11C 'gabriel':8B 'generic':19 'old':16,17 'or':20 'radio':4A,5A,21 'tracking':1A 'treasure':2A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'trance', 'progressive trance', 'house', 'progressive house', 'electronic']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696231.7746148  (2021-05-22 17:10:31)
                             'size'  4096089