======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '257'
                                          'artist'  'MC Hammer'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "U Can't Touch This (1991)"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', '90s', 'hip hop', 'rap']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;hip hop or rnb or rap or turntablism'
                                             'bpm'  '88.865'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '88.865'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'hip hop or rnb or rap or turntablism']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         "U Can't Touch This (1991)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'MC Hammer'
'TRCK' (Track number/Position in set)               '0'
'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'                                   ['dance', '90s', 'hip hop', 'rap']
'TXXX:other'                                        '055'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.72 dB'
'TXXX:replaygain_track_peak'                        '1.035161'

========================== row from database ==========================
                                              'id'  1519035
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/055 - MC Hammer - U Can_t Touch This (1991).mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  257
                                           'genre'  electronic-generic or radio-unsorted;hip hop or rnb or rap or turntablism
                                        'filesize'  3606605
                                           'mtime'  1620566539
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 055 Can_t electronic generic or radio unsorted;hip hop or rnb or rap or turntablism
                                      'tag_artist'  MC Hammer
                                     'tag_release'  None
                                       'tag_title'  U Can't Touch This (1991)
                                             'bpm'  88.865
                                    'search_title'  '1991':7,8 'can':2 'cant':4 't':3 'this':6 'touch':5 'u':1
                                   'search_artist'  'hammer':2 'mc':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '90s':2 'can':3 'electronic':5 'generic':6 'hip':10,12 'hop':13 'or':7 'radio':8 'rap':15 'rnb':14 't':4 'turntablism':16 'unsorted':9,11
                                    'search_combo'  '00poprockelectronic':11 '1991':7A,8A '90s':12 'can':2A,13 'cant':4A 'electronic':15 'generic':16 'hammer':10B 'hip':20,22 'hop':23 'mc':9B 'or':17 'radio':18 'rap':25 'rnb':24 't':3A,14 'this':6A 'touch':5A 'turntablism':26 'u':1A 'unsorted':19,21
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', '90s', 'hip hop', 'rap']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620566539.4894514  (2021-05-09 15:22:19)
                             'size'  3606605