======================== unified (from filesystem) ========================
                                         'bitrate'  '187.742'
                                        'duration'  '185'
                                          'artist'  'Simon & Garfunkel'
                                     'text_people'  ''
                                         'release'  'Sounds of Silence'
                                           'title'  'The Sound of Silence'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['acoustic', 'rock', 'singer songwriter', 'folk', 'classic rock']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '107.208'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Love; Chillout; Sleep'
'TALB' (Album/Movie/Show title)                     'Sounds of Silence'
'TBPM' (BPM (beats per minute))                     '107.208'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'The Sound of Silence'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Simon & Garfunkel'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['acoustic', 'rock', 'singer songwriter', 'folk', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.23 dB'
'TXXX:replaygain_track_peak'                        '0.606260'

========================== row from database ==========================
                                              'id'  204824
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Simon and Garfunkel/Simon_&_Garfunkel_-_Sounds_of_Silence_(Remastered)_[RePoPo]/mp3/(01) [Simon & Garfunkel] The Sound Of Silence.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  185
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  4360541
                                           'mtime'  1621699784
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos and Simon_&_Garfunkel_ _Sounds_of_Silence_(Remastered)_[RePoPo] mp3 (01) [Simon Garfunkel] Of ifs songwriter folk
                                      'tag_artist'  Simon & Garfunkel
                                     'tag_release'  Sounds of Silence
                                       'tag_title'  The Sound of Silence
                                             'bpm'  107.208
                                    'search_title'  'of':3 'silence':4 'sound':2 'the':1
                                   'search_artist'  'garfunkel':2 'simon':1
                                  'search_release'  'of':2 'silence':3 'sounds':1
                                     'search_rest'  '00singer':1 '01':20,21 'and':4 'eos':3 'folk':28 'garfunkel':6,8,24,25 'ifs':27 'mp3':19 'of':10,15,26,30,35 'po':39,40 're':33,38 'remastered':12,17,32,37 'repopo':13,18 'silence':11,16,31,36 'simon':5,7,22,23 'songwriter':2 'sounds':9,14,29,34
                                    'search_combo'  '00singer':10 '01':29,30 'and':13 'eos':12 'folk':37 'garfunkel':6B,15,17,33,34 'ifs':36 'mp3':28 'of':3A,8C,19,24,35,39,44 'po':48,49 're':42,47 'remastered':21,26,41,46 'repopo':22,27 'silence':4A,9C,20,25,40,45 'simon':5B,14,16,31,32 'songwriter':11 'sound':2A 'sounds':7C,18,23,38,43 'the':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['acoustic', 'rock', 'singer songwriter', 'folk', 'classic rock']
                                        'tag_date'  2001
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1621699784.1797812  (2021-05-22 18:09:44)
                             'size'  4360541