======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '161'
                                          'artist'  'Red Nichols'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Jungle Fever (vocal - Songcopators)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['cornet', '20s', 'jazz', 'dixieland', 'dixieland jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '113.964'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '113.964'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'Jungle Fever (vocal - Songcopators)'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Red Nichols'
'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:lastfmtags'                                   ['cornet', '20s', 'jazz', 'dixieland', 'dixieland jazz']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                        '+2.35 dB'
'TXXX:replaygain_track_peak'                        '0.657684'

========================== row from database ==========================
                                              'id'  677323
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1934/Red Nichols - Jungle Fever (vocal - Songcopators) 18-6-1934.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  161
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3237629
                                           'mtime'  1620526155
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1934 18 6 1934 prerock jb jazz unsorted
                                      'tag_artist'  Red Nichols
                                     'tag_release'  None
                                       'tag_title'  Jungle Fever (vocal - Songcopators)
                                             'bpm'  113.964
                                    'search_title'  'fever':2 'jungle':1 'songcopators':5,6 'vocal':3,4
                                   'search_artist'  'nichols':2 'red':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '18':7 '1934':6 '6':8 'country':4 'exotica':2 'jazz':1 'jb':10 'oldies':3 'prerock':9 'unsorted':11
                                    'search_combo'  '00oldiepop':13 '18':15 '1934':14 '6':16 'country':12 'exotica':10 'fever':2A 'jazz':9 'jb':18 'jungle':1A 'nichols':8B 'oldies':11 'prerock':17 'red':7B 'songcopators':5A,6A 'unsorted':19 'vocal':3A,4A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['cornet', '20s', 'jazz', 'dixieland', 'dixieland jazz']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620526155.168378  (2021-05-09 04:09:15)
                             'size'  3237629