======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '115'
                                          'artist'  'Harry James'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Sharp As A Tack'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', 'jazz', 'trumpet', 'bebop', 'swing']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1941'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '84.7'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '84.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1941-04-28'
'TIT2' (Title/songname/content description)         'Sharp As A Tack'
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '115000'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry James'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['big band', 'jazz', 'trumpet', 'bebop', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.95 dB'
'TXXX:replaygain_track_peak'                        '0.510331'

========================== row from database ==========================
                                              'id'  1473040
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1941/Harry James - Sharp As A Tack 28-4-1941.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  115
                                           'genre'  prerock-swing
                                        'filesize'  2362955
                                           'mtime'  1620561727
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1941 28 4 1941 prerock swing
                                      'tag_artist'  Harry James
                                     'tag_release'  None
                                       'tag_title'  Sharp As A Tack
                                             'bpm'  84.7
                                    'search_title'  'a':3 'as':2 'sharp':1 'tack':4
                                   'search_artist'  'harry':1 'james':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1941':6 '28':7 '4':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'swing':10
                                    'search_combo'  '00oldiepop':11 '1941':12 '28':13 '4':14 'a':3A 'as':2A 'country':10 'exotica':8 'harry':5B 'james':6B 'jazz':7 'oldies':9 'prerock':15 'sharp':1A 'swing':16 'tack':4A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['big band', 'jazz', 'trumpet', 'bebop', 'swing']
                                        'tag_date'  1941
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620561726.575152  (2021-05-09 14:02:06)
                             'size'  2362955