======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '205'
                                          'artist'  'Paul Whiteman & His Orchestra feat. v/Taylor/Crosby.'
                                     'text_people'  ''
                                         'release'  'Billboard 1928'
                                           'title'  'Mississippi Mud'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-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-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '062'
                                      'tracktotal'  ''
                                            'date'  '1928'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '92.518'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ('Debuted 1928 and peaked at #6 on Various Charts. Source: Pop Memories\r\n'
 'feat. v/Taylor/Crosby.')
'COMM:ID3v1 Comment:XXX'                            'Debuted 1928 and peaked at #'
'TALB' (Album/Movie/Show title)                     'Billboard 1928'
'TBPM' (BPM (beats per minute))                     '92.518'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1928'
'TIT2' (Title/songname/content description)         'Mississippi Mud'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Paul Whiteman & His Orchestra feat. v/Taylor/Crosby.'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '062'
'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:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'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'                        '+1.87 dB'
'TXXX:replaygain_track_peak'                        '0.672747'

========================== row from database ==========================
                                              'id'  978179
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Billboard 1928/1928_062 - Paul Whiteman & His Orchestra feat. v-Taylor-Crosby. - Mississippi Mud 80 M (3.25).mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  205
                                           'genre'  prerock-swing
                                        'filesize'  2056064
                                           'mtime'  1620562693
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1928_062 80 (3.25) prerock swing
                                      'tag_artist'  Paul Whiteman & His Orchestra feat. v/Taylor/Crosby.
                                     'tag_release'  Billboard 1928
                                       'tag_title'  Mississippi Mud
                                             'bpm'  92.518
                                    'search_title'  'mississippi':1 'mud':2
                                   'search_artist'  'crosby':9 'feat':5,6 'his':3 'orchestra':4 'paul':1 'taylor':8 'v':7 'vtaylorcrosby':10 'whiteman':2
                                  'search_release'  '1928':2 'billboard':1
                                     'search_rest'  '062':6 '1928':5 '25':9 '3':8 '325':10 '80':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':11 'swing':12
                                    'search_combo'  '062':20 '1928':14C,19 '25':23 '3':22 '325':24 '80':21 'billboard':13C 'country':18 'crosby':11B 'exotica':16 'feat':7B,8B 'his':5B 'jazz':15 'mississippi':1A 'mud':2A 'oldies':17 'orchestra':6B 'paul':3B 'prerock':25 'swing':26 'taylor':10B 'v':9B 'vtaylorcrosby':12B 'whiteman':4B
                                    'tag_tracknum'  62
                                      'num_images'  0
                                             'key'  6A
                                           '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1928
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562692.6329973  (2021-05-09 14:18:12)
                             'size'  2056064