======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '267'
                                          'artist'  'U2'
                                     'text_people'  ''
                                         'release'  'top100'
                                           'title'  'Pride in the name of love'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['irish', 'classic rock', 'alternative', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '112.134'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'top100'
'TBPM' (BPM (beats per minute))                     '112.134'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TIT2' (Title/songname/content description)         'Pride in the name of love'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'U2'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '105,185'
'TXXX:Mp3gain_undo'                                 '+001,+001,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tracknum'                                     '032'
'TXXX:lastfmtags'                                   ['irish', 'classic rock', 'alternative', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.67 dB'
'TXXX:replaygain_track_peak'                        '0.564274'

========================== row from database ==========================
                                              'id'  1407440
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/top100/032-U2-Pride_in_the_name_of_love.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  267
                                           'genre'  rock-pop
                                        'filesize'  4283642
                                           'mtime'  1622802054
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 032 Pride_in_the_name_of_love rock pop
                                      'tag_artist'  U2
                                     'tag_release'  top100
                                       'tag_title'  Pride in the name of love
                                             'bpm'  112.134
                                    'search_title'  'in':2 'love':6 'name':4 'of':5 'pride':1 'the':3
                                   'search_artist'  'u2':1
                                  'search_release'  'top100':1
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'generic':2 'in':6 'love':10 'name':8 'of':9 'pop':12 'pride':5 'rock':11 'the':7 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':9 'dance':11 'generic':10 'in':2A,14 'love':6A,18 'name':4A,16 'of':5A,17 'pop':20 'pride':1A,13 'rock':19 'the':3A,15 'top100':8C 'trapbeat':12 'u2':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['irish', 'classic rock', 'alternative', 'pop', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622802053.6084325  (2021-06-04 12:20:53)
                             'size'  4283642