======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '140'
                                          'artist'  'Peggy Lee'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I've Got The World On A String"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'jazz', 'female vocalists', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1950'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing;prerock-jb-jazz-vocal'
                                             'bpm'  '96.668'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '96.668'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-soft-swing', 'prerock-jb-jazz-vocal']
'TDRC' (Recording time)                             '1950'
'TENC' (Encoded by)                                 'RioPort MP3 2.0'
'TIT2' (Title/songname/content description)         "I've Got The World On A String"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Peggy Lee'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'jazz', 'female vocalists', 'oldies', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.97 dB'
'TXXX:replaygain_track_peak'                        '0.519138'

========================== row from database ==========================
                                              'id'  1512693
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Lee, Peggy/New Folder/Peggy Lee - I_ve Got the World on A String.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  140
                                           'genre'  prerock-jb-jazz-soft-swing;prerock-jb-jazz-vocal
                                        'filesize'  2244480
                                           'mtime'  1620531225
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Lee, New Folder I_ve the on prerock jb jazz soft swing;prerock jb jazz vocal
                                      'tag_artist'  Peggy Lee
                                     'tag_release'  None
                                       'tag_title'  I've Got The World On A String
                                             'bpm'  96.668
                                    'search_title'  'a':8 'got':4 'i':1 'ive':3 'on':7 'string':9 'the':5 've':2 'world':6
                                   'search_artist'  'lee':2 'peggy':1
                                  'search_release'  
                                     'search_rest'  'country':4 'exotica':2 'folder':8 'i':9 'jazz':1 'jb':14 'lee':5,6 'new':7 'oldies':3 'on':12 'prerock':13,17,19 'soft':15 'swing':16,18 'the':11 've':10 'vocal':20
                                    'search_combo'  'a':8A 'country':15 'exotica':13 'folder':19 'got':4A 'i':1A,20 'ive':3A 'jazz':12 'jb':25 'lee':11B,16,17 'new':18 'oldies':14 'on':7A,23 'peggy':10B 'prerock':24,28,30 'soft':26 'string':9A 'swing':27,29 'the':5A,22 've':2A,21 'vocal':31 'world':6A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'jazz', 'female vocalists', 'oldies', 'swing']
                                        'tag_date'  1950
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620531224.6781907  (2021-05-09 05:33:44)
                             'size'  2244480