======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '256'
                                          'artist'  'Belinda Carlisle'
                                     'text_people'  ''
                                         'release'  'Heaven on Earth'
                                           'title'  'Should I Let You In?'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'female vocalists', 'pop', 'summer']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio'
                                             'bpm'  '143.213'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Heaven on Earth'
'TBPM' (BPM (beats per minute))                     '143.213'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'Should I Let You In?'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Belinda Carlisle'
'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:lastfmtags'                                   ['80s', 'female vocalists', 'pop', 'summer']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.29 dB'
'TXXX:replaygain_track_peak'                        '0.673928'

========================== row from database ==========================
                                              'id'  1404327
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Belinda Carlisle/1988 - Heaven On Earth/belinda carlisle - 04 - should i let you in.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  256
                                           'genre'  electronic-generic or radio
                                        'filesize'  4117044
                                           'mtime'  1636136060
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 1988 On belinda carlisle 04 should let you electronic generic or radio
                                      'tag_artist'  Belinda Carlisle
                                     'tag_release'  Heaven on Earth
                                       'tag_title'  Should I Let You In?
                                             'bpm'  143.213
                                    'search_title'  'i':2 'in':5 'let':3 'should':1 'you':4
                                   'search_artist'  'belinda':1 'carlisle':2
                                  'search_release'  'earth':3 'heaven':1 'on':2
                                     'search_rest'  '00poprockelectronic':1 '1988':5 'belinda':7 'carlisle':8 'dance':3 'electronic':12 'generic':2 'let':10 'on':6 'or':13 'radio':14 'should':9 'trapbeat':4 'you':11
                                    'search_combo'  '00poprockelectronic':11 '1988':15 'belinda':6B,17 'carlisle':7B,18 'dance':13 'earth':10C 'electronic':22 'generic':12 'heaven':8C 'i':2A 'in':5A 'let':3A,20 'on':9C,16 'or':23 'radio':24 'should':1A,19 'trapbeat':14 'you':4A,21
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'female vocalists', 'pop', 'summer']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636136060.4841006  (2021-11-05 19:14:20)
                             'size'  4117044