======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '205'
                                          'artist'  'Machito & His Orchestra'
                                     'text_people'  ''
                                         'release'  'Si! Si! No! No!'
                                           'title'  'Holiday Mambo'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['mambo', 'jazz', 'wilson pickett cover', '50s', 'cuba']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '108.471'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Si! Si! No! No!'
'TBPM' (BPM (beats per minute))                     '108.471'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TIT2' (Title/songname/content description)         'Holiday Mambo'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Machito & His Orchestra'
'TRCK' (Track number/Position in set)               '10'
'TXXX:DATE'                                         '1957'
'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'                                   ['mambo', 'jazz', 'wilson pickett cover', '50s', 'cuba']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.21 dB'
'TXXX:replaygain_track_peak'                        '0.413102'

========================== row from database ==========================
                                              'id'  1284394
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Machito & His Orchestra - Si Si No No/Holiday Mambo.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  205
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3286899
                                           'mtime'  1620532383
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country prerock jb jazz unsorted
                                      'tag_artist'  Machito & His Orchestra
                                     'tag_release'  Si! Si! No! No!
                                       'tag_title'  Holiday Mambo
                                             'bpm'  108.471
                                    'search_title'  'holiday':1 'mambo':2
                                   'search_artist'  'his':2 'machito':1 'orchestra':3
                                  'search_release'  'no':2 'si':1
                                     'search_rest'  'country':4 'exotica':2 'jazz':1 'jb':6 'oldies':3 'prerock':5 'unsorted':7
                                    'search_combo'  'country':11 'exotica':9 'his':4B 'holiday':1A 'jazz':8 'jb':13 'machito':3B 'mambo':2A 'no':7C 'oldies':10 'orchestra':5B 'prerock':12 'si':6C 'unsorted':14
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['mambo', 'jazz', 'wilson pickett cover', '50s', 'cuba']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620532382.6039886  (2021-05-09 05:53:02)
                             'size'  3286899