======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '197'
                                          'artist'  'Rahzel & The Roots'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Do you want more'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['hip-hop', 'rap', 'hip hop', 'soul', 'alternative rap']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '92.181'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '92.181'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TIT2' (Title/songname/content description)         'Do you want more'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rahzel & The Roots'
'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'                                   ['hip-hop', 'rap', 'hip hop', 'soul', 'alternative rap']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'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'                        '+0.59 dB'
'TXXX:replaygain_track_peak'                        '0.649421'

========================== row from database ==========================
                                              'id'  1251208
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Rahzel/Rahzel & The Roots - Do you want more.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  197
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  2371584
                                           'mtime'  1620592427
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism hip hop rnb rap turntablism
                                      'tag_artist'  Rahzel & The Roots
                                     'tag_release'  None
                                       'tag_title'  Do you want more
                                             'bpm'  92.181
                                    'search_title'  'do':1 'more':4 'want':3 'you':2
                                   'search_artist'  'rahzel':1 'roots':3 'the':2
                                  'search_release'  
                                     'search_rest'  'hip':5 'hiphop':1 'hop':6 'rap':2 'rnb':3 'turntablism':4
                                    'search_combo'  'do':1A 'hip':12 'hiphop':8 'hop':13 'more':4A 'rahzel':5B 'rap':9 'rnb':10 'roots':7B 'the':6B 'turntablism':11 'want':3A 'you':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           '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-2', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['hip-hop', 'rap', 'hip hop', 'soul', 'alternative rap']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620592427.367752  (2021-05-09 22:33:47)
                             'size'  2371584