======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '164'
                                          'artist'  'Van & Schenck'
                                     'text_people'  ''
                                         'release'  'Columbia  3490 (80004)'
                                           'title'  "O' Reilly (I'm Ashamed Of You)"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['vaudeville', 'all', '20s', 'ragtime', 'usa']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1921'
                                        'comments'  ''
                                           'genre'  'prerock-ragtime'
                                             'bpm'  '118.4'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Columbia  3490 (80004)'
'TBPM' (BPM (beats per minute))                     '118.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-ragtime'
'TDRC' (Recording time)                             '1921-09-27'
'TIT2' (Title/songname/content description)         "O' Reilly (I'm Ashamed Of You)"
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '164000'
'TPE1' (Lead performer(s)/Soloist(s))               'Van & Schenck'
'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'                                   ['vaudeville', 'all', '20s', 'ragtime', 'usa']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+2.55 dB'
'TXXX:replaygain_track_peak'                        '0.561611'

========================== row from database ==========================
                                              'id'  1509178
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1921/Van & Schenck - O_ Reilly (I_m Ashamed of You) 27-9-1921.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  164
                                           'genre'  prerock-ragtime
                                        'filesize'  3368500
                                           'mtime'  1620527134
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1921 O_ (I_m of 27 1921 prerock ragtime
                                      'tag_artist'  Van & Schenck
                                     'tag_release'  Columbia  3490 (80004)
                                       'tag_title'  O' Reilly (I'm Ashamed Of You)
                                             'bpm'  118.4
                                    'search_title'  'ashamed':7 'i':4 'im':6 'm':5 'o':1,2 'of':8 'reilly':3 'you':9,10
                                   'search_artist'  'schenck':2 'van':1
                                  'search_release'  '3490':2 '80004':3,4 'columbia':1
                                     'search_rest'  '00oldiepop':5 '1921':6 '27':13 'country':4 'exotica':2 'i':8,10 'jazz':1 'm':9,11 'o':7 'of':12 'oldies':3 'prerock':14 'ragtime':15
                                    'search_combo'  '00oldiepop':21 '1921':22 '27':29 '3490':14C '80004':15C,16C 'ashamed':7A 'columbia':13C 'country':20 'exotica':18 'i':4A,24,26 'im':6A 'jazz':17 'm':5A,25,27 'o':1A,2A,23 'of':8A,28 'oldies':19 'prerock':30 'ragtime':31 'reilly':3A 'schenck':12B 'van':11B 'you':9A,10A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           '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-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['vaudeville', 'all', '20s', 'ragtime', 'usa']
                                        'tag_date'  1921
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527134.4958744  (2021-05-09 04:25:34)
                             'size'  3368500