======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '254'
                                          'artist'  'Edmond Hall'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Blues At The Blue Note'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-2', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['american', 'clarinet', 'jazz', 'blues', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '85.525'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '85.525'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         'Blues At The Blue Note'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Edmond Hall'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['american', 'clarinet', 'jazz', 'blues', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.06 dB'
'TXXX:replaygain_track_peak'                        '0.771758'

========================== row from database ==========================
                                              'id'  1427877
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/Edmond Hall - Blues At The Blue Note 9-11-1943.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  254
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  5095127
                                           'mtime'  1620527441
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 9 11 1943 prerock jb jazz unsorted
                                      'tag_artist'  Edmond Hall
                                     'tag_release'  None
                                       'tag_title'  Blues At The Blue Note
                                             'bpm'  85.525
                                    'search_title'  'at':2 'blue':4 'blues':1 'note':5 'the':3
                                   'search_artist'  'edmond':1 'hall':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1943':6 '9':7 'country':4 'exotica':2 'jazz':1 'jb':9 'oldies':3 'prerock':8 'unsorted':10
                                    'search_combo'  '00oldiepop':12 '1943':13 '9':14 'at':2A 'blue':4A 'blues':1A 'country':11 'edmond':6B 'exotica':9 'hall':7B 'jazz':8 'jb':16 'note':5A 'oldies':10 'prerock':15 'the':3A 'unsorted':17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['american', 'clarinet', 'jazz', 'blues', 'swing']
                                        'tag_date'  1943
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620527440.7739139  (2021-05-09 04:30:40)
                             'size'  5095127