======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '347'
                                          'artist'  'PPK'
                                     'text_people'  ''
                                         'release'  'PPK://PROMO.REMIXES'
                                           'title'  'SUN  (feat.Sveta)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['russian', 'trance', 'electronica', 'electronic', 'dance']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '135.004'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:Bio:eng'                                      ('PPK is 3 years old, had released 2 albums in limited edition in '
 'Rostov-na-Donu, Russia. Had played on many raves in Russia.')
'COMM:ID3v1 Comment:XXX'                            'PPK is 3 years old, had rele'
'TALB' (Album/Movie/Show title)                     'PPK://PROMO.REMIXES'
'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TFLT' (File type)                                  'MPG/3'
'TIT2' (Title/songname/content description)         'SUN  (feat.Sveta)'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '347436'
'TPE1' (Lead performer(s)/Soloist(s))               'PPK'
'TRCK' (Track number/Position in set)               '7'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['russian', 'trance', 'electronica', 'electronic', 'dance']
'TXXX:q-bass'                                       '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.540851'
'UFID:mailto:webmaster@mp3.com'                     UFID(owner='mailto:webmaster@mp3.com', data=b'376168')
'USER:eng'                                          ('Copyright notice. All material on MP3.com are protected by copyright law and '
 'by international treaties. You may download this material and make a '
 'reasonable number of copies of this material only for your own personal use. '
 'You may not otherwise reproduce, distribute, publicly perform, publicly '
 'display, or create derivative works of this material, unless authorized by '
 'the appropriate copyright owner(s).')

========================== row from database ==========================
                                              'id'  1404167
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Top 40/PPK - Sun (Feat Sveta).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  347
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  5564403
                                           'mtime'  1621695902
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Top 40 Sun (Feat electronic generic or radio dance
                                      'tag_artist'  PPK
                                     'tag_release'  PPK://PROMO.REMIXES
                                       'tag_title'  SUN  (feat.Sveta)
                                             'bpm'  135.004
                                    'search_title'  'feat':2 'featsveta':4 'sun':1 'sveta':3
                                   'search_artist'  'ppk':1
                                  'search_release'  'ppk':1 'ppkpromoremixes':4 'promo':2 'remixes':3
                                     'search_rest'  '00poprockelectronic':1 '40':6 'dance':3 'electronic':10 'feat':8,9 'generic':2 'or':11 'radio':12 'sun':7 'top':5 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':10 '40':15 'dance':12 'electronic':19 'feat':2A,17,18 'featsveta':4A 'generic':11 'or':20 'ppk':5B,6C 'ppkpromoremixes':9C 'promo':7C 'radio':21 'remixes':8C 'sun':1A,16 'sveta':3A 'top':14 'trapbeat':13
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-grit-2']
                                      'lastfmtags'  ['russian', 'trance', 'electronica', 'electronic', 'dance']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621695902.0647686  (2021-05-22 17:05:02)
                             'size'  5564403