======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '175'
                                          'artist'  'Cypress Hill'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'When the Ship Goes Down'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['alternative', 'rapcore', 'hip hop', 'rap']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '96.209'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '96.209'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TIT2' (Title/songname/content description)         'When the Ship Goes Down'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cypress Hill'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative', 'rapcore', 'hip hop', 'rap']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.38 dB'
'TXXX:replaygain_track_peak'                        '0.736376'

========================== row from database ==========================
                                              'id'  1265445
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Cypress Hill/Cypress Hill - When the Ship Goes Down.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  175
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  2805079
                                           'mtime'  1620587040
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism hop or rnb or rap or turntablism
                                      'tag_artist'  Cypress Hill
                                     'tag_release'  None
                                       'tag_title'  When the Ship Goes Down
                                             'bpm'  96.209
                                    'search_title'  'down':5 'goes':4 'ship':3 'the':2 'when':1
                                   'search_artist'  'cypress':1 'hill':2
                                  'search_release'  
                                     'search_rest'  'hiphop':1 'hop':5 'or':6 'rap':2 'rnb':3 'turntablism':4
                                    'search_combo'  'cypress':6B 'down':5A 'goes':4A 'hill':7B 'hiphop':8 'hop':12 'or':13 'rap':9 'rnb':10 'ship':3A 'the':2A 'turntablism':11 'when':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['alternative', 'rapcore', 'hip hop', 'rap']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620587039.825509  (2021-05-09 21:03:59)
                             'size'  2805079