======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '140'
                                          'artist'  'Maxine Sullivan'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'My ideal'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  ("['create new tag', 'jazz vocal', 'jazz', 'female vocalists', '50s', 'jazz "
 "vocal tag']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '115'
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '91.308'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '91.308'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         'My ideal'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Maxine Sullivan'
'TRCK' (Track number/Position in set)               '115'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['create new tag',
 'jazz vocal',
 'jazz',
 'female vocalists',
 '50s',
 'jazz vocal tag']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.32 dB'
'TXXX:replaygain_track_peak'                        '0.536010'

========================== row from database ==========================
                                              'id'  1455623
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/115 My ideal - Maxine Sullivan (25-09-1943).mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  140
                                           'genre'  prerock-unsorted
                                        'filesize'  1685762
                                           'mtime'  1620386946
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1943 115 (25 09 1943) prerock unsorted
                                      'tag_artist'  Maxine Sullivan
                                     'tag_release'  None
                                       'tag_title'  My ideal
                                             'bpm'  91.308
                                    'search_title'  'ideal':2 'my':1
                                   'search_artist'  'maxine':1 'sullivan':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '115':7 '1943':6,10 '25':8,9 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':11 'unsorted':12
                                    'search_combo'  '00oldiepop':9 '115':11 '1943':10,14 '25':12,13 'country':8 'exotica':6 'ideal':2A 'jazz':5 'maxine':3B 'my':1A 'oldies':7 'prerock':15 'sullivan':4B 'unsorted':16
                                    'tag_tracknum'  115
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['create new tag', 'jazz vocal', 'jazz', 'female vocalists', '50s', 'jazz vocal tag']
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620386946.0459886  (2021-05-07 13:29:06)
                             'size'  1685762