======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '204'
                                          'artist'  "Da Vinci's Notebook"
                                     'text_people'  ''
                                         'release'  "Bendy's Law"
                                           'title'  'Window-Washing Cowboy'
                                           'quals'  "['q-bass-3', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'Acapella'
                                             'bpm'  '144.5'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=153)
'PRIV:AverageLevel:À\x11\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xc0\x11\x00\x00')
'PRIV:PeakValue:â|\x00\x00'                         PRIV(owner='PeakValue', data=b'\xe2|\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)                     "Bendy's Law"
'TBPM' (BPM (beats per minute))                     '144.5'
'TCON' (Content type, a.k.a. Genre)                 'Acapella'
'TIT2' (Title/songname/content description)         'Window-Washing Cowboy'
'TKEY' (Initial key)                                '2A'
'TLEN' (Length)                                     '204460'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               "Da Vinci's Notebook"
'TRCK' (Track number/Position in set)               '6'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'

========================== row from database ==========================
                                              'id'  1538104
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Da Vinci's Notebook/Window-Washing Cowboy.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  204
                                           'genre'  Acapella
                                        'filesize'  3272910
                                           'mtime'  1662800533
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] Acapella
                                      'tag_artist'  Da Vinci's Notebook
                                     'tag_release'  Bendy's Law
                                       'tag_title'  Window-Washing Cowboy
                                             'bpm'  144.5
                                    'search_title'  'cowboy':4 'washing':2 'window':1 'windowwashing':3
                                   'search_artist'  'da':1 'notebook':5 's':3 'vinci':2 'vincis':4
                                  'search_release'  'bendy':1 'bendys':3 'law':4 's':2
                                     'search_rest'  '9amusing':2,3 'acapella':4 'prev':5 'prevset':1 'set':6
                                    'search_combo'  '9amusing':15,16 'acapella':17 'bendy':10C 'bendys':12C 'cowboy':4A 'da':5B 'law':13C 'notebook':9B 'prev':18 'prevset':14 's':7B,11C 'set':19 'vinci':6B 'vincis':8B 'washing':2A 'window':1A 'windowwashing':3A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['q-bass-3', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800533.033407  (2022-09-10 11:02:13)
                             'size'  3272910