======================== unified (from filesystem) ========================
                                         'bitrate'  '64.0'
                                        'duration'  '180'
                                          'artist'  'Guy Lombardo & His Royal Canadians'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "How Do I Know It's Sunday?"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'classic swing', 'christmas', 'swing', 'canadian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '206'
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '124.621'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 1934 and peaked at #14 on Various Charts. source Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 1934 and peaked at #'
'TBPM' (BPM (beats per minute))                     '124.621'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         "How Do I Know It's Sunday?"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Guy Lombardo & His Royal Canadians'
'TRCK' (Track number/Position in set)               '206'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'classic swing', 'christmas', 'swing', 'canadian']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.24 dB'
'TXXX:replaygain_track_peak'                        '0.492171'

========================== row from database ==========================
                                              'id'  1497674
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/How do I know it_s Sunday - Guy Lombardo and His Royal Canadians.mp3
                                         'working'  None
                                         'bitrate'  64
                                    'duration_sec'  180
                                           'genre'  prerock-band
                                        'filesize'  1447497
                                           'mtime'  1620560246
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 know it_s and prerock band
                                      'tag_artist'  Guy Lombardo & His Royal Canadians
                                     'tag_release'  None
                                       'tag_title'  How Do I Know It's Sunday?
                                             'bpm'  124.621
                                    'search_title'  'do':2 'how':1 'i':3 'it':5 'its':7 'know':4 's':6 'sunday':8
                                   'search_artist'  'canadians':5 'guy':1 'his':3 'lombardo':2 'royal':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1934':6 'and':10 'band':12 'country':4 'exotica':2 'it':8 'jazz':1 'know':7 'oldies':3 'prerock':11 's':9
                                    'search_combo'  '00oldiepop':18 '1934':19 'and':23 'band':25 'canadians':13B 'country':17 'do':2A 'exotica':15 'guy':9B 'his':11B 'how':1A 'i':3A 'it':5A,21 'its':7A 'jazz':14 'know':4A,20 'lombardo':10B 'oldies':16 'prerock':24 'royal':12B 's':6A,22 'sunday':8A
                                    'tag_tracknum'  206
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'classic swing', 'christmas', 'swing', 'canadian']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560245.5843673  (2021-05-09 13:37:25)
                             'size'  1447497