======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '163'
                                          'artist'  'Al Jolson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "You Ain't Heard Nothing Yet 22-9-1919"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['20s', 'oldies', 'music hall', 'male vocalists', 'jazz', 'vaudeville']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1919'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '115.1'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '115.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1919'
'TIT2' (Title/songname/content description)         "You Ain't Heard Nothing Yet 22-9-1919"
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '163000'
'TPE1' (Lead performer(s)/Soloist(s))               'Al Jolson'
'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:lastfmtags'                                   ['20s', 'oldies', 'music hall', 'male vocalists', 'jazz', 'vaudeville']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.35 dB'
'TXXX:replaygain_track_peak'                        '0.575365'

========================== row from database ==========================
                                              'id'  1521613
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/veryearly/1919/Al Jolson - You Ain_t Heard Nothing Yet 22-9-1919.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  163
                                           'genre'  prerock-vocal
                                        'filesize'  3308552
                                           'mtime'  1621853256
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm veryearly Ain_t prerock vocal
                                      'tag_artist'  Al Jolson
                                     'tag_release'  None
                                       'tag_title'  You Ain't Heard Nothing Yet 22-9-1919
                                             'bpm'  115.1
                                    'search_title'  '1919':10 '22':8 '2291919':11 '9':9 'ain':2 'aint':4 'heard':5 'nothing':6 't':3 'yet':7 'you':1
                                   'search_artist'  'al':1 'jolson':2
                                  'search_release'  
                                     'search_rest'  'ain':2 'prerock':4 't':3 'veryearly':1 'vocal':5
                                    'search_combo'  '1919':10A '22':8A '2291919':11A '9':9A 'ain':2A,15 'aint':4A 'al':12B 'heard':5A 'jolson':13B 'nothing':6A 'prerock':17 't':3A,16 'veryearly':14 'vocal':18 'yet':7A 'you':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6B
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['20s', 'oldies', 'music hall', 'male vocalists', 'jazz', 'vaudeville']
                                        'tag_date'  1919
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853255.6430316  (2021-05-24 12:47:35)
                             'size'  3308552