======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '163'
                                          'artist'  'bert williams'
                                     'text_people'  ''
                                         'release'  '1920s and 1930s popular'
                                           'title'  'not lately'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-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-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['1900s', 'vaudeville', 'comedy', '78rpm', 'antigua']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1922'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '127.605'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:Ð\n\x00\x00'                     PRIV(owner='AverageLevel', data=b'\xd0\n\x00\x00')
'PRIV:PeakValue:\x06z\x00\x00'                      PRIV(owner='PeakValue', data=b'\x06z\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     '1920s and 1930s popular'
'TBPM' (BPM (beats per minute))                     '127.605'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1922'
'TIT2' (Title/songname/content description)         'not lately'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'bert williams'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['1900s', 'vaudeville', 'comedy', '78rpm', 'antigua']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.23 dB'
'TXXX:replaygain_track_peak'                        '0.674119'

========================== row from database ==========================
                                              'id'  1138859
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Bert Williams - Not Lately 1922 Columbia-3589 (80191).mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  163
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  2312395
                                           'mtime'  1620524332
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop Bert Williams Not Lately 1922 Columbia 3589 (80191) prerock jb jazz unsorted
                                      'tag_artist'  bert williams
                                     'tag_release'  1920s and 1930s popular
                                       'tag_title'  not lately
                                             'bpm'  127.605
                                    'search_title'  'lately':2 'not':1
                                   'search_artist'  'bert':1 'williams':2
                                  'search_release'  '1920s':1 '1930s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1922':10 '3589':12 '80191':13,14 'bert':6 'columbia':11 'country':4 'exotica':2 'jazz':1 'jb':16 'lately':9 'not':8 'oldies':3 'prerock':15 'unsorted':17 'williams':7
                                    'search_combo'  '00oldiepop':13 '1920s':5C '1922':18 '1930s':7C '3589':20 '80191':21,22 'and':6C 'bert':3B,14 'columbia':19 'country':12 'exotica':10 'jazz':9 'jb':24 'lately':2A,17 'not':1A,16 'oldies':11 'popular':8C 'prerock':23 'unsorted':25 'williams':4B,15
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['1900s', 'vaudeville', 'comedy', '78rpm', 'antigua']
                                        'tag_date'  1922
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524332.4944098  (2021-05-09 03:38:52)
                             'size'  2312395