======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '197'
                                          'artist'  ''
                                     'text_people'  ''
                                         'release'  'The Golden Years Of Music Hall'
                                           'title'  'Jolly Good Luck To The Girl Who Loves A Soldier'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1900'
                                        'comments'  ''
                                           'genre'  'prerock-doowop'
                                             'bpm'  '117.5'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'LINK:WCOh:ttp://www.emusic.com/albums/23067/:LINK'  LINK(frameid='WCOh', url='ttp://www.emusic.com/albums/23067/', data=b'LINK')
'TALB' (Album/Movie/Show title)                     'The Golden Years Of Music Hall'
'TBPM' (BPM (beats per minute))                     '117.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-doowop'
'TDRC' (Recording time)                             '1900'
'TIT2' (Title/songname/content description)         'Jolly Good Luck To The Girl Who Loves A Soldier'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Various Artists'
'TRCK' (Track number/Position in set)               '10'
'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'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.95 dB'
'TXXX:replaygain_track_peak'                        '0.679087'

========================== row from database ==========================
                                              'id'  513950
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Wax Cylinder／very old recordings： 1878-1920 [wma／32k]/1907 - Vesta Tilley - Jolly Good Luck To The Girls Who Loves .mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  197
                                           'genre'  prerock-doowop
                                        'filesize'  3164900
                                           'mtime'  1621705425
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Wax Cylinder／very recordings： 1878 1920 [wma／32k] 1907 Vesta Tilley Girls prerock doowop
                                      'tag_artist'  Various Artists - Saydisc
                                     'tag_release'  The Golden Years Of Music Hall
                                       'tag_title'  Jolly Good Luck To The Girl Who Loves A Soldier
                                             'bpm'  117.5
                                    'search_title'  'a':9 'girl':6 'good':2 'jolly':1 'loves':8 'luck':3 'soldier':10 'the':5 'to':4 'who':7
                                   'search_artist'  'artists':2 'saydisc':3 'various':1
                                  'search_release'  'golden':2 'hall':6 'music':5 'of':4 'the':1 'years':3
                                     'search_rest'  '1878':10 '1907':19 '1920':11 '32k':13,15,17 'cylinder':2,4 'cylindervery':6 'doowop':24 'girls':22 'prerock':23 'recordings':7,8,9 'tilley':21 'very':3,5 'vesta':20 'wax':1 'wma':12,14,16 'wma32k':18
                                    'search_combo'  '1878':26 '1907':35 '1920':27 '32k':29,31,33 'a':9A 'cylinder':18,20 'cylindervery':22 'doowop':40 'girl':6A 'girls':38 'golden':12C 'good':2A 'hall':16C 'jolly':1A 'loves':8A 'luck':3A 'music':15C 'of':14C 'prerock':39 'recordings':23,24,25 'soldier':10A 'the':5A,11C 'tilley':37 'to':4A 'very':19,21 'vesta':36 'wax':17 'who':7A 'wma':28,30,32 'wma32k':34 'years':13C
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  8A
                                           '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1900
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705424.5277967  (2021-05-22 19:43:44)
                             'size'  3164900