======================== unified (from filesystem) ========================
                                         'bitrate'  '210.478'
                                        'duration'  '107'
                                          'artist'  'Princess Superstar'
                                     'text_people'  ''
                                         'release'  'My Machine'
                                           'title'  '10,000 Hits'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['female vocalists', 'electronic', 'hip hop', 'rap']"
                                     'discogstags'  ("['electronic', 'hip hop', 'rock', 'house', 'punk', 'new wave', 'breakbeat', "
 "'electro', 'synth-pop']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '93.457'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'My Machine'
'TBPM' (BPM (beats per minute))                     '93.457'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         '10,000 Hits'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Princess Superstar'
'TRCK' (Track number/Position in set)               '9'
'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'                                  ['electronic',
 'hip hop',
 'rock',
 'house',
 'punk',
 'new wave',
 'breakbeat',
 'electro',
 'synth-pop']
'TXXX:lastfmtags'                                   ['female vocalists', 'electronic', 'hip hop', 'rap']
'TXXX:q-bass'                                       '2'
'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'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.07 dB'
'TXXX:replaygain_track_peak'                        '0.398582'

========================== row from database ==========================
                                              'id'  719358
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Princess Superstar/my machine/09-princess_superstar-10,000_hits.mp3
                                         'working'  None
                                         'bitrate'  210
                                    'duration_sec'  107
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  2839899
                                           'mtime'  1620592412
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism my machine 09 princess_superstar 10,000_hits hip hop or rnb or rap or turntablism
                                      'tag_artist'  Princess Superstar
                                     'tag_release'  My Machine
                                       'tag_title'  10,000 Hits
                                             'bpm'  93.457
                                    'search_title'  '000':2,4 '10':1,3 'hits':5
                                   'search_artist'  'princess':1 'superstar':2
                                  'search_release'  'machine':2 'my':1
                                     'search_rest'  '000':10,13 '10':9,12 'hip':15 'hiphop':1 'hits':11,14 'hop':16 'machine':6 'my':5 'or':17 'princess':7 'rap':2 'rnb':3 'superstar':8 'turntablism':4
                                    'search_combo'  '000':2A,4A,19,22 '10':1A,3A,18,21 'hip':24 'hiphop':10 'hits':5A,20,23 'hop':25 'machine':9C,15 'my':8C,14 'or':26 'princess':6B,16 'rap':11 'rnb':12 'superstar':7B,17 'turntablism':13
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', '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-2', 'q-grit-2']
                                      'lastfmtags'  ['female vocalists', 'electronic', 'hip hop', 'rap']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic', 'hip hop', 'rock', 'house', 'punk', 'new wave', 'breakbeat', 'electro', 'synth-pop']

============================== file details ==============================
                                           'mtime'  1620592411.7313492  (2021-05-09 22:33:31)
                             'size'  2839899