======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '198'
                                          'artist'  "Fred Waring's Pennsylvanians"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "006 Yankee Doodle boy - Fred Waring's Pennsylvanians (13-02-1943)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1943'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '145.371'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.371'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1943'
'TIT2' (Title/songname/content description)         "006 Yankee Doodle boy - Fred Waring's Pennsylvanians (13-02-1943)"
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               "Fred Waring's Pennsylvanians"
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.351503'

========================== row from database ==========================
                                              'id'  1506640
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1943/006 Yankee Doodle boy - Fred Waring_s Pennsylvanians (13-02-1943).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  198
                                           'genre'  prerock-unsorted
                                        'filesize'  3185290
                                           'mtime'  1621698056
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop Waring_s prerock unsorted
                                      'tag_artist'  Fred Waring's Pennsylvanians
                                     'tag_release'  None
                                       'tag_title'  006 Yankee Doodle boy - Fred Waring's Pennsylvanians (13-02-1943)
                                             'bpm'  145.371
                                    'search_title'  '02':10 '13':9 '13021943':12 '1943':11 'boy':3 'doodle':2 'fred':4 'pennsylvanians':8 's':6 'waring':5 'warings':7 'yankee':1
                                   'search_artist'  'fred':1 'pennsylvanians':5 's':3 'waring':2 'warings':4
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 's':7 'unsorted':9 'waring':6
                                    'search_combo'  '00oldiepop':22 '02':10A '13':9A '13021943':12A '1943':11A 'boy':3A 'country':21 'doodle':2A 'exotica':19 'fred':4A,13B 'jazz':18 'oldies':20 'pennsylvanians':8A,17B 'prerock':25 's':6A,15B,24 'unsorted':26 'waring':5A,14B,23 'warings':7A,16B 'yankee':1A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  4A
                                           '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-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1943
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698055.5475123  (2021-05-22 17:40:55)
                             'size'  3185290