======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '196'
                                          'artist'  'Sammy Davis, Jr.'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'That Old Black Magic'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['male vocalists', 'jazz', 'rat pack', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '103'
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '145.267'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.267'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         'That Old Black Magic'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sammy Davis, Jr.'
'TRCK' (Track number/Position in set)               '103'
'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'                                   ['male vocalists', 'jazz', 'rat pack', 'oldies', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.11 dB'
'TXXX:replaygain_track_peak'                        '0.358061'

========================== row from database ==========================
                                              'id'  1436374
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1955/1955-103 - Sammy Davis, Jr. - That Old Black Magic.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  196
                                           'genre'  prerock-swing
                                        'filesize'  7872456
                                           'mtime'  1620562519
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1955 1955 103 prerock swing
                                      'tag_artist'  Sammy Davis, Jr.
                                     'tag_release'  None
                                       'tag_title'  That Old Black Magic
                                             'bpm'  145.267
                                    'search_title'  'black':3 'magic':4 'old':2 'that':1
                                   'search_artist'  'davis':2,3 'jr':4,5 'sammy':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '103':7 '1955':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'swing':9
                                    'search_combo'  '00oldiepop':14 '103':16 '1955':15 'black':3A 'country':13 'davis':6B,7B 'exotica':11 'jazz':10 'jr':8B,9B 'magic':4A 'old':2A 'oldies':12 'prerock':17 'sammy':5B 'swing':18 'that':1A
                                    'tag_tracknum'  103
                                      'num_images'  0
                                             'key'  6A
                                           '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-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['male vocalists', 'jazz', 'rat pack', 'oldies', 'swing']
                                        'tag_date'  1955
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562518.8569963  (2021-05-09 14:15:18)
                             'size'  7872456