======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '178'
                                          'artist'  'Count Basie'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'How Long Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['fip', 'jazz', 'big band', 'swing', 'piano', 'blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1942'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '86.1'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '86.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1942-07-24'
'TIT2' (Title/songname/content description)         'How Long Blues'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '178000'
'TPE1' (Lead performer(s)/Soloist(s))               'Count Basie'
'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:lastfmtags'                                   ['fip', 'jazz', 'big band', 'swing', 'piano', 'blues']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.70 dB'
'TXXX:replaygain_track_peak'                        '0.861143'

========================== row from database ==========================
                                              'id'  1467550
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1942/Count Basie - How Long Blues 24-7-1942.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  178
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3623922
                                           'mtime'  1620527410
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1942 24 7 1942 prerock jb jazz unsorted
                                      'tag_artist'  Count Basie
                                     'tag_release'  None
                                       'tag_title'  How Long Blues
                                             'bpm'  86.1
                                    'search_title'  'blues':3 'how':1 'long':2
                                   'search_artist'  'basie':2 'count':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1942':6 '24':7 '7':8 'country':4 'exotica':2 'jazz':1 'jb':10 'oldies':3 'prerock':9 'unsorted':11
                                    'search_combo'  '00oldiepop':10 '1942':11 '24':12 '7':13 'basie':5B 'blues':3A 'count':4B 'country':9 'exotica':7 'how':1A 'jazz':6 'jb':15 'long':2A 'oldies':8 'prerock':14 'unsorted':16
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9B
                                           '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-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['fip', 'jazz', 'big band', 'swing', 'piano', 'blues']
                                        'tag_date'  1942
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527410.2240622  (2021-05-09 04:30:10)
                             'size'  3623922