======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '188'
                                          'artist'  'Machito & His Orchestra'
                                     'text_people'  ''
                                         'release'  'Si! Si! No! No!'
                                           'title'  'Carambola'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['mambo', 'jazz', 'wilson pickett cover', '50s', 'cuba']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '142.508'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Si! Si! No! No!'
'TBPM' (BPM (beats per minute))                     '142.508'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TIT2' (Title/songname/content description)         'Carambola'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Machito & His Orchestra'
'TRCK' (Track number/Position in set)               '12'
'TXXX:DATE'                                         '1957'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['mambo', 'jazz', 'wilson pickett cover', '50s', 'cuba']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.15 dB'
'TXXX:replaygain_track_peak'                        '0.378578'

========================== row from database ==========================
                                              'id'  1284446
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Machito & His Orchestra - Si Si No No/Carambola.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  188
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3028178
                                           'mtime'  1620532371
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country prerock jb jazz unsorted
                                      'tag_artist'  Machito & His Orchestra
                                     'tag_release'  Si! Si! No! No!
                                       'tag_title'  Carambola
                                             'bpm'  142.508
                                    'search_title'  'carambola':1
                                   'search_artist'  'his':2 'machito':1 'orchestra':3
                                  'search_release'  'no':2 'si':1
                                     'search_rest'  'country':4 'exotica':2 'jazz':1 'jb':6 'oldies':3 'prerock':5 'unsorted':7
                                    'search_combo'  'carambola':1A 'country':10 'exotica':8 'his':3B 'jazz':7 'jb':12 'machito':2B 'no':6C 'oldies':9 'orchestra':4B 'prerock':11 'si':5C 'unsorted':13
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['mambo', 'jazz', 'wilson pickett cover', '50s', 'cuba']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620532370.9258578  (2021-05-09 05:52:50)
                             'size'  3028178