======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '155'
                                          'artist'  'Betty Boop (Helen Kane)'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', '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-2', "
 "'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '00'
                                      'tracktotal'  ''
                                            'date'  '1930'
                                        'comments'  ''
                                           'genre'  'set-th-incharacter'
                                             'bpm'  '115.458'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'C:\\Music\\Marilyn Monroe\\Marily'
'COMM:MusicMatch_Path:XXX'                          'C:\\Music\\Marilyn Monroe\\Marilyn Monroe - Santa Baby.mp3'
'TBPM' (BPM (beats per minute))                     '115.458'
'TCON' (Content type, a.k.a. Genre)                 'set-th-incharacter'
'TDRC' (Recording time)                             '1930'
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '155000'
'TPE1' (Lead performer(s)/Soloist(s))               'Betty Boop (Helen Kane)'
'TRCK' (Track number/Position in set)               '00'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.39 dB'
'TXXX:replaygain_track_peak'                        '0.649182'
'TXXX:title'                                        ['Helen Kane - Santa Baby', 'Marilyn Monroe - Santa Baby']

========================== row from database ==========================
                                              'id'  978490
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Helen Kane - misc/Helen Kane - Santa Baby.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  155
                                           'genre'  set-th-incharacter
                                        'filesize'  2488596
                                           'mtime'  1620343051
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country misc Santa Baby set th incharacter
                                      'tag_artist'  Betty Boop (Helen Kane)
                                     'tag_release'  None
                                       'tag_title'  Helen Kane - Santa Baby
                                             'bpm'  115.458
                                    'search_title'  'baby':4 'helen':1 'kane':2 'santa':3
                                   'search_artist'  'betty':1 'boop':2 'helen':3,4 'kane':5,6
                                  'search_release'  
                                     'search_rest'  'baby':7 'country':4 'exotica':2 'incharacter':10 'jazz':1 'misc':5 'oldies':3 'santa':6 'set':8 'th':9
                                    'search_combo'  'baby':13 'betty':1B 'boop':2B 'country':10 'exotica':8 'helen':3B,4B 'incharacter':16 'jazz':7 'kane':5B,6B 'misc':11 'oldies':9 'santa':12 'set':14 'th':15
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-piano-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1930
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343050.7409065  (2021-05-07 01:17:30)
                             'size'  2488596