======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '257'
                                          'artist'  'Alberta Hunter'
                                     'text_people'  ''
                                         'release'  'Downhearted Blues'
                                           'title'  "The Darktown Strutter's Ball"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rhythm and blues', 'blues', 'jazz', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '08'
                                      'tracktotal'  ''
                                            'date'  '1981'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal'
                                             'bpm'  '145.790'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x002\x00+\x009\x006\x00+\x004\x003\x006\x007\x00+\x008\x009\x00B\x00C\x00+\x00C\x005\x00E\x001\x00+\x001\x002\x00F\x00E\x00F\x00+\x001\x006\x00B\x005\x007\x00+\x001\x00A\x006\x003\x005\x00+\x001\x00F\x00F\x000\x004\x00+\x002\x004\x00A\x007\x007\x00+\x002\x008\x002\x000\x00D\x00+\x002\x00D\x007\x002\x003\x00+\x003\x002\x001\x008\x00B\x00+\x003\x006\x000\x007\x00B\x00+\x003\x00A\x002\x005\x00A\x00+\x003\x00D\x006\x006\x009\x00+\x004\x001\x001\x001\x00F\x00+\x004\x005\x00A\x007\x006\x00+\x004\x009\x001\x00B\x000\x00+\x004\x00D\x005\x00E\x00E\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Downhearted Blues'
'TBPM' (BPM (beats per minute))                     '145.790'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-vocal'
'TDRC' (Recording time)                             '1981'
'TIT2' (Title/songname/content description)         "The Darktown Strutter's Ball"
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Alberta Hunter'
'TRCK' (Track number/Position in set)               '08'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rhythm and blues', 'blues', 'jazz', 'female vocalists']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.87 dB'
'TXXX:replaygain_track_peak'                        '0.496534'

========================== row from database ==========================
                                              'id'  1499046
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/alberta hunter downhearted blues live at the cookery/08. The Darktown Strutter_s Ball.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  257
                                           'genre'  prerock-jb-jazz-vocal
                                        'filesize'  10306830
                                           'mtime'  1620537357
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country alberta hunter downhearted blues live at the cookery 08. Strutter_s prerock jb jazz vocal
                                      'tag_artist'  Alberta Hunter
                                     'tag_release'  Downhearted Blues
                                       'tag_title'  The Darktown Strutter's Ball
                                             'bpm'  145.79
                                    'search_title'  'ball':6 'darktown':2 's':4 'strutter':3 'strutters':5 'the':1
                                   'search_artist'  'alberta':1 'hunter':2
                                  'search_release'  'blues':2 'downhearted':1
                                     'search_rest'  '08':13,14 'alberta':5 'at':10 'blues':8 'cookery':12 'country':4 'downhearted':7 'exotica':2 'hunter':6 'jazz':1 'jb':18 'live':9 'oldies':3 'prerock':17 's':16 'strutter':15 'the':11 'vocal':19
                                    'search_combo'  '08':23,24 'alberta':7B,15 'at':20 'ball':6A 'blues':10C,18 'cookery':22 'country':14 'darktown':2A 'downhearted':9C,17 'exotica':12 'hunter':8B,16 'jazz':11 'jb':28 'live':19 'oldies':13 'prerock':27 's':4A,26 'strutter':3A,25 'strutters':5A 'the':1A,21 'vocal':29
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rhythm and blues', 'blues', 'jazz', 'female vocalists']
                                        'tag_date'  1981
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620537356.838595  (2021-05-09 07:15:56)
                             'size'  10306830