======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '176'
                                          'artist'  'Carmen Miranda'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Novo Amor (samba)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['brazil', 'samba', 'female vocalists', 'latin', 'brazilian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1936'
                                        'comments'  ''
                                           'genre'  'prerock-samba'
                                             'bpm'  '111.333'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '111.333'
'TCON' (Content type, a.k.a. Genre)                 'prerock-samba'
'TDRC' (Recording time)                             '1936'
'TIT2' (Title/songname/content description)         'Novo Amor (samba)'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Carmen Miranda'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['brazil', 'samba', 'female vocalists', 'latin', 'brazilian']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+0.79 dB'
'TXXX:replaygain_track_peak'                        '0.550732'

========================== row from database ==========================
                                              'id'  1437932
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1936/Carmen Miranda - Novo Amor (Samba) 10-12-1936.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  176
                                           'genre'  prerock-samba
                                        'filesize'  3524402
                                           'mtime'  1636135303
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1936 (Samba) 10 12 1936 prerock
                                      'tag_artist'  Carmen Miranda
                                     'tag_release'  None
                                       'tag_title'  Novo Amor (samba)
                                             'bpm'  111.333
                                    'search_title'  'amor':2 'novo':1 'samba':3,4
                                   'search_artist'  'carmen':1 'miranda':2
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1936':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'samba':7,8
                                    'search_combo'  '00oldiepop':11 '1936':12 'amor':2A 'carmen':5B 'country':10 'exotica':8 'jazz':7 'miranda':6B 'novo':1A 'oldies':9 'prerock':15 'samba':3A,4A,13,14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           '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-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['brazil', 'samba', 'female vocalists', 'latin', 'brazilian']
                                        'tag_date'  1936
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636135302.9016657  (2021-11-05 19:01:42)
                             'size'  3524402