======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '276'
                                          'artist'  'Madonna'
                                     'text_people'  ''
                                         'release'  'Ray of Light'
                                           'title'  'Candy Perfume Girl'
                                           '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-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', '80s', 'female vocalists', 'pop', 'electronic']"
                                     'discogstags'  "['electro', 'electronic', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '97.225'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ray of Light'
'TBPM' (BPM (beats per minute))                     '97.225'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Candy Perfume Girl'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Madonna'
'TRCK' (Track number/Position in set)               '4'
'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'                                  ['electro', 'electronic', 'pop']
'TXXX:lastfmtags'                                   ['dance', '80s', 'female vocalists', 'pop', 'electronic']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.30 dB'
'TXXX:replaygain_track_peak'                        '0.561763'

========================== row from database ==========================
                                              'id'  1339217
                                            'path'  /data/Music/Bulk/00poprockelectronic/Madonna/MBZ;#Madonna;#Ray of Light;#04;#Candy Perfume Girl.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  276
                                           'genre'  electronic-unsorted
                                        'filesize'  4431353
                                           'mtime'  1621696351
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Madonna;#Ray Light;#04;#Candy electronic unsorted
                                      'tag_artist'  Madonna
                                     'tag_release'  Ray of Light
                                       'tag_title'  Candy Perfume Girl
                                             'bpm'  97.225
                                    'search_title'  'candy':1 'girl':3 'perfume':2
                                   'search_artist'  'madonna':1
                                  'search_release'  'light':3 'of':2 'ray':1
                                     'search_rest'  '00poprockelectronic':1 '04':9,12 'candy':10,13 'electronic':14 'light':8,11 'madonna':3,6 'mbz':2,5 'ray':4,7 'unsorted':15
                                    'search_combo'  '00poprockelectronic':8 '04':16,19 'candy':1A,17,20 'electronic':21 'girl':3A 'light':7C,15,18 'madonna':4B,10,13 'mbz':9,12 'of':6C 'perfume':2A 'ray':5C,11,14 'unsorted':22
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  11A
                                           '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', '80s', 'female vocalists', 'pop', 'electronic']
                                        'tag_date'  1998
                                     'discogstags'  ['electro', 'electronic', 'pop']

============================== file details ==============================
                                           'mtime'  1621696351.4349282  (2021-05-22 17:12:31)
                             'size'  4431353