======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '300'
                                          'artist'  'Madonna'
                                     'text_people'  ''
                                         'release'  'The Immaculate Collection'
                                           'title'  'Justify My Love'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', '80s', 'female vocalists', 'pop', 'electronic']"
                                     'discogstags'  "['electronic', 'pop', 'dance-pop', 'ballad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;set-pl-billboard'
                                             'bpm'  '99.616'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Immaculate Collection'
'TBPM' (BPM (beats per minute))                     '99.616'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Justify My Love'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Madonna'
'TRCK' (Track number/Position in set)               '16'
'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', 'pop', 'dance-pop', 'ballad']
'TXXX:lastfmtags'                                   ['dance', '80s', 'female vocalists', 'pop', 'electronic']
'TXXX:original release date'                        ['1990', '1990']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.52 dB'
'TXXX:replaygain_track_peak'                        '0.831304'

========================== row from database ==========================
                                              'id'  1286856
                                            'path'  /data/Music/Bulk/00poprockelectronic/Madonna/MBZ;#Madonna;#The Immaculate Collection;#16;#Justify my love.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  300
                                           'genre'  electronic-unsorted;set-pl-billboard
                                        'filesize'  4816471
                                           'mtime'  1621696352
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Madonna;#The Collection;#16;#Justify my love electronic unsorted;set pl billboard
                                      'tag_artist'  Madonna
                                     'tag_release'  The Immaculate Collection
                                       'tag_title'  Justify My Love
                                             'bpm'  99.616
                                    'search_title'  'justify':1 'love':3 'my':2
                                   'search_artist'  'madonna':1
                                  'search_release'  'collection':3 'immaculate':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 '16':9,12 'billboard':22 'collection':8,11 'electronic':16 'justify':10,13 'love':15 'madonna':3,6 'mbz':2,5 'my':14 'pl':21 'set':18,20 'the':4,7 'unsorted':17,19
                                    'search_combo'  '00poprockelectronic':8 '16':16,19 'billboard':29 'collection':7C,15,18 'electronic':23 'immaculate':6C 'justify':1A,17,20 'love':3A,22 'madonna':4B,10,13 'mbz':9,12 'my':2A,21 'pl':28 'set':25,27 'the':5C,11,14 'unsorted':24,26
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', '80s', 'female vocalists', 'pop', 'electronic']
                                        'tag_date'  1990
                                     'discogstags'  ['electronic', 'pop', 'dance-pop', 'ballad']

============================== file details ==============================
                                           'mtime'  1621696351.5364351  (2021-05-22 17:12:31)
                             'size'  4816471