======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '185'
                                          'artist'  'Willy Vervoort'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Cheerio Holland'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1946'
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands'
                                             'bpm'  '134.288'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '134.288'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-netherlands'
'TDRC' (Recording time)                             '1946'
'TIT2' (Title/songname/content description)         'Cheerio Holland'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Willy Vervoort'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'pop'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.47 dB'
'TXXX:replaygain_track_peak'                        '0.662243'

========================== row from database ==========================
                                              'id'  1439154
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1946/Willy Vervoort - Cheerio Holland 1946.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  185
                                           'genre'  loc-eur-netherlands
                                        'filesize'  3716927
                                           'mtime'  1621627598
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1946 1946 loc eur netherlands
                                      'tag_artist'  Willy Vervoort
                                     'tag_release'  None
                                       'tag_title'  Cheerio Holland
                                             'bpm'  134.288
                                    'search_title'  'cheerio':1 'holland':2
                                   'search_artist'  'vervoort':2 'willy':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1946':6 'country':4 'eur':8 'exotica':2 'jazz':1 'loc':7 'netherlands':9 'oldies':3
                                    'search_combo'  '00oldiepop':9 '1946':10 'cheerio':1A 'country':8 'eur':12 'exotica':6 'holland':2A 'jazz':5 'loc':11 'netherlands':13 'oldies':7 'vervoort':4B 'willy':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1946
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1621627598.1164703  (2021-05-21 22:06:38)
                             'size'  3716927