======================== unified (from filesystem) ========================
                                         'bitrate'  '153.881'
                                        'duration'  '173'
                                          'artist'  'Duke Ellington & His Famous Orchestra Feat. Irving Mills'
                                     'text_people'  ''
                                         'release'  'Billboard 1928'
                                           'title'  'Diga Diga Doo'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', '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'  '196alt'
                                      'tracktotal'  ''
                                            'date'  '1928'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '122.215'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 12/1/1928 and peaked at #17 on Various Charts. Source: Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 12/1/1928 and peaked'
'TALB' (Album/Movie/Show title)                     'Billboard 1928'
'TBPM' (BPM (beats per minute))                     '122.215'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1928'
'TIT2' (Title/songname/content description)         'Diga Diga Doo'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Duke Ellington & His Famous Orchestra Feat. Irving Mills'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '196alt'
'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:q-bass'                                       '4'
'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'                        '+0.68 dB'
'TXXX:replaygain_track_peak'                        '0.840973'

========================== row from database ==========================
                                              'id'  978553
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Billboard 1928/1928_196alt 2 - Duke Ellington Orch v Irving Mills - Diga Diga Doo VBR 155 JS (2.52).mp3
                                         'working'  None
                                         'bitrate'  153
                                    'duration_sec'  173
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  3345469
                                           'mtime'  1620528255
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1928_196alt VBR 155 JS (2.52) prerock jb jazz unsorted
                                      'tag_artist'  Duke Ellington & His Famous Orchestra Feat. Irving Mills
                                     'tag_release'  Billboard 1928
                                       'tag_title'  Diga Diga Doo
                                             'bpm'  122.215
                                    'search_title'  'diga':1 'doo':2
                                   'search_artist'  'duke':1 'ellington':2 'famous':4 'feat':6,7 'his':3 'irving':8 'mills':9 'orchestra':5
                                  'search_release'  '1928':2 'billboard':1
                                     'search_rest'  '155':8 '1928':5 '196alt':6 '2':10 '252':12 '52':11 'country':4 'exotica':2 'jazz':1 'jb':14 'js':9 'oldies':3 'prerock':13 'unsorted':15 'vbr':7
                                    'search_combo'  '155':21 '1928':13C,18 '196alt':19 '2':23 '252':25 '52':24 'billboard':12C 'country':17 'diga':1A 'doo':2A 'duke':3B 'ellington':4B 'exotica':15 'famous':6B 'feat':8B,9B 'his':5B 'irving':10B 'jazz':14 'jb':27 'js':22 'mills':11B 'oldies':16 'orchestra':7B 'prerock':26 'unsorted':28 'vbr':20
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           '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-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1928
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528255.196266  (2021-05-09 04:44:15)
                             'size'  3345469