======================== unified (from filesystem) ========================
                                         'bitrate'  '185.23'
                                        'duration'  '265'
                                          'artist'  'Cypress Hill'
                                     'text_people'  ''
                                         'release'  'Black Sunday'
                                           'title'  'Cock the Hammer'
                                           '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-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['alternative', 'rapcore', 'hip hop', 'rap']"
                                     'discogstags'  "['hip hop', 'thug rap']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  '14'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '98.886'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Black Sunday'
'TBPM' (BPM (beats per minute))                     '98.886'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '1993'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Cock the Hammer'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cypress Hill'
'TRCK' (Track number/Position in set)               '06/14'
'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:discogstags'                                  ['hip hop', 'thug rap']
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.82 dB'
'TXXX:replaygain_track_peak'                        '0.802944'

========================== row from database ==========================
                                              'id'  1277551
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Cypress Hill/Black Sunday/06-cock the hammer-bdc.mp3
                                         'working'  None
                                         'bitrate'  185
                                    'duration_sec'  265
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  6146795
                                           'mtime'  1620587039
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism 06 cock hammer bdc hip hop or rnb or rap or turntablism
                                      'tag_artist'  Cypress Hill
                                     'tag_release'  Black Sunday
                                       'tag_title'  Cock the Hammer
                                             'bpm'  98.886
                                    'search_title'  'cock':1 'hammer':3 'the':2
                                   'search_artist'  'cypress':1 'hill':2
                                  'search_release'  'black':1 'sunday':2
                                     'search_rest'  'bdc':7 'cock':5 'hammer':6 'hip':8 'hiphop':1 'hop':9 'or':10 'rap':2 'rnb':3 'turntablism':4
                                    'search_combo'  'bdc':14 'black':6C 'cock':1A,12 'cypress':4B 'hammer':3A,13 'hill':5B 'hip':15 'hiphop':8 'hop':16 'or':17 'rap':9 'rnb':10 'sunday':7C 'the':2A 'turntablism':11
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-1', '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'  1993
                                     'discogstags'  ['hip hop', 'thug rap']

============================== file details ==============================
                                           'mtime'  1620587039.2261405  (2021-05-09 21:03:59)
                             'size'  6146795