======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '172'
                                          'artist'  'John Peel Peelenium'
                                     'text_people'  ''
                                         'release'  '1950-1959/1951'
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1951'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '102.905'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'c:\\musicmatch jukebox\\Music\\'
'COMM:MusicMatch_Path:eng'                          'c:\\musicmatch jukebox\\Music\\Dust my broom.mp3'
'COMM:MusicMatch_Serial:eng'                        '1A74507'
'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)                     '1950-1959/1951'
'TBPM' (BPM (beats per minute))                     '102.905'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1951'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '175000'
'TPE1' (Lead performer(s)/Soloist(s))               'John Peel Peelenium'
'TRCK' (Track number/Position in set)               '4'
'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'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.82 dB'
'TXXX:replaygain_track_peak'                        '0.435057'
'TXXX:title'                                        ['Elmore James-Dust My Broom', 'Dust my broom', 'Dust my broom']

========================== row from database ==========================
                                              'id'  1443674
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1951/4 Elmore James - Dust My Broom.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  172
                                           'genre'  prerock-vocal
                                        'filesize'  2758551
                                           'mtime'  1621853302
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 4 Elmore James Dust My Broom prerock vocal
                                      'tag_artist'  John Peel Peelenium
                                     'tag_release'  1950-1959/1951
                                       'tag_title'  None
                                             'bpm'  102.905
                                    'search_title'  None
                                   'search_artist'  'john':1 'peel':2 'peelenium':3
                                  'search_release'  '1950':1 '195019591951':4 '1951':3 '1959':2
                                     'search_rest'  '00oldiepop':5 '4':6 'broom':11 'country':4 'dust':9 'elmore':7 'exotica':2 'james':8 'jazz':1 'my':10 'oldies':3 'prerock':12 'vocal':13
                                    'search_combo'  '00oldiepop':12 '1950':4C '195019591951':7C '1951':6C '1959':5C '4':13 'broom':18 'country':11 'dust':16 'elmore':14 'exotica':9 'james':15 'jazz':8 'john':1B 'my':17 'oldies':10 'peel':2B 'peelenium':3B 'prerock':19 'vocal':20
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-piano-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1951
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853302.171069  (2021-05-24 12:48:22)
                             'size'  2758551