======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '179'
                                          'artist'  'Robert Knight'
                                     'text_people'  ''
                                         'release'  '#1967'
                                           'title'  'Everlasting Love'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-2', "
 "'Q-MIXBEAT-2', 'Q-PLAY-2', 'Q-CHART-3', 'Q-LOCALNESS-1', 'q-bass-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'Q-OLDST-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '116.1'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '#1967'
'TBPM' (BPM (beats per minute))                     '116.1'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'Everlasting Love'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Robert Knight'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '3'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.01 dB'
'TXXX:replaygain_track_peak'                        '0.448421'

========================== row from database ==========================
                                              'id'  1539110
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/1967/Robert Knight - Everlasting Love.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  179
                                           'genre'  rock-unsorted
                                        'filesize'  4306323
                                           'mtime'  1636912637
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock rock unsorted
                                      'tag_artist'  Robert Knight
                                     'tag_release'  #1967
                                       'tag_title'  Everlasting Love
                                             'bpm'  116.1
                                    'search_title'  'everlasting':1 'love':2
                                   'search_artist'  'knight':2 'robert':1
                                  'search_release'  '1967':1,2
                                     'search_rest'  '00poprockelectronic':1 'indierock':3 'poprock':2 'rock':4 'unsorted':5
                                    'search_combo'  '00poprockelectronic':7 '1967':5C,6C 'everlasting':1A 'indierock':9 'knight':4B 'love':2A 'poprock':8 'robert':3B 'rock':10 'unsorted':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-MIXBEAT-2', 'Q-PLAY-2', 'Q-CHART-3', 'Q-LOCALNESS-1', 'q-bass-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'Q-OLDST-2']
                                      'lastfmtags'  []
                                        'tag_date'  1967
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912636.9678452  (2021-11-14 18:57:16)
                             'size'  4306323