======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '114'
                                          'artist'  'Vess Ossman'
                                     'text_people'  ''
                                         'release'  'SONGS OF THE CENTURY'
                                           'title'  'Yankee Doodle'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['ragtime', 'banjo', 'explore', 'all', '1910s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1894'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '103.4'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ('1894_006 - Debuted 1894 and peaked at #1 on Various Charts. Source: Pop '
 'Memories. [very worn copy]')
'TALB' (Album/Movie/Show title)                     'SONGS OF THE CENTURY'
'TBPM' (BPM (beats per minute))                     '103.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TCOP' (Copyright message)                          'WB Renamer and Tagger v1.92'
'TDRC' (Recording time)                             '1894'
'TIT2' (Title/songname/content description)         'Yankee Doodle'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Vess Ossman'
'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'                                   ['ragtime', 'banjo', 'explore', 'all', '1910s']
'TXXX:q-bass'                                       '1'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.16 dB'
'TXXX:replaygain_track_peak'                        '0.807069'

========================== row from database ==========================
                                              'id'  512160
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Wax Cylinder／very old recordings： 1878-1920 [wma／32k]/1894 - 006 - Vess Ossman - Yankee Doodle 128 JS (1.54).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  114
                                           'genre'  prerock-unsorted
                                        'filesize'  1830784
                                           'mtime'  1678927265
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Wax Cylinder／very old recordings： 1878 1920 [wma／32k] 1894 006 128 JS (1.54) prerock unsorted
                                      'tag_artist'  Vess Ossman
                                     'tag_release'  SONGS OF THE CENTURY
                                       'tag_title'  Yankee Doodle
                                             'bpm'  103.4
                                    'search_title'  'doodle':2 'yankee':1
                                   'search_artist'  'ossman':2 'vess':1
                                  'search_release'  'century':4 'of':2 'songs':1 'the':3
                                     'search_rest'  '1':23 '128':21 '154':25 '1878':11 '1894':20 '1920':12 '32k':14,16,18 '54':24 'cylinder':2,4 'cylindervery':6 'js':22 'old':7 'prerock':26 'recordings':8,9,10 'unsorted':27 'very':3,5 'wax':1 'wma':13,15,17 'wma32k':19
                                    'search_combo'  '1':31 '128':29 '154':33 '1878':19 '1894':28 '1920':20 '32k':22,24,26 '54':32 'century':8C 'cylinder':10,12 'cylindervery':14 'doodle':2A 'js':30 'of':6C 'old':15 'ossman':4B 'prerock':34 'recordings':16,17,18 'songs':5C 'the':7C 'unsorted':35 'very':11,13 'vess':3B 'wax':9 'wma':21,23,25 'wma32k':27 'yankee':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']
                                      'lastfmtags'  ['ragtime', 'banjo', 'explore', 'all', '1910s']
                                        'tag_date'  1894
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678927264.5764208  (2023-03-16 01:41:04)
                             'size'  1830784