======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '183'
                                          'artist'  'Teddy Buckner Jazz Band'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'West End  blues'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-1', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-salon or easy'
                                             'bpm'  '145.895'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-salon or easy'
'TIT2' (Title/songname/content description)         'West End  blues'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Teddy Buckner Jazz Band'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.53 dB'
'TXXX:replaygain_track_peak'                        '0.545759'

========================== row from database ==========================
                                              'id'  1455575
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00jazz/Teddy  Buckner  JB__13 West End  blues.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  183
                                           'genre'  prerock-jb-jazz-soft-salon or easy
                                        'filesize'  3667395
                                           'mtime'  1620523990
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00jazz JB__13 prerock jb jazz soft salon or easy
                                      'tag_artist'  Teddy Buckner Jazz Band
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  West End  blues
                                             'bpm'  145.895
                                    'search_title'  'blues':3 'end':2 'west':1
                                   'search_artist'  'band':4 'buckner':2 'jazz':3 'teddy':1
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00jazz':5 '13':7 'country':4 'easy':13 'exotica':2 'jazz':1 'jb':6,9 'oldies':3 'or':12 'prerock':8 'salon':11 'soft':10
                                    'search_combo'  '00jazz':17 '13':19 'album':9C 'band':7B 'blues':3A 'buckner':5B 'country':16 'easy':25 'end':2A 'exotica':14 'jazz':6B,13 'jb':18,21 'non':8C 'nonalbum':10C 'oldies':15 'or':24 'prerock':20 'salon':23 'soft':22 'teddy':4B 'tracks':11C,12C 'west':1A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620523989.9066303  (2021-05-09 03:33:09)
                             'size'  3667395