======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '27'
                                          'artist'  'Horror and Exploitation Movie Spots'
                                     'text_people'  ''
                                         'release'  'Horror and Exploitation Movie Radio Spots'
                                           'title'  'frankenstein-01 30'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1963'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials-trailers'
                                             'bpm'  '119.546'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{\x04\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x04\x00\x00')
'PRIV:PeakValue:!\x00\x00\x00'                      PRIV(owner='PeakValue', data=b'!\x00\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)                     'Horror and Exploitation Movie Radio Spots'
'TBPM' (BPM (beats per minute))                     '119.546'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-commercials-trailers'
'TDRC' (Recording time)                             '1963'
'TIT2' (Title/songname/content description)         'frankenstein-01 30'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Horror and Exploitation Movie Spots'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.34 dB'
'TXXX:replaygain_track_peak'                        '0.355865'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3M110R90555940V384FD693F8E4EF48272813327C69EC5E3CP0')

========================== row from database ==========================
                                              'id'  954829
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/trailers/young-frankenstein-01_30.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  27
                                           'genre'  nonmusic-commercials-trailers
                                        'filesize'  442117
                                           'mtime'  1620528214
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer trailers young 01_30 nonmusic commercials trailers
                                      'tag_artist'  Horror and Exploitation Movie Spots
                                     'tag_release'  Horror and Exploitation Movie Radio Spots
                                       'tag_title'  frankenstein-01 30
                                             'bpm'  119.546
                                    'search_title'  '01':2 '30':4 'frankenstein':1 'frankenstein01':3
                                   'search_artist'  'and':2 'exploitation':3 'horror':1 'movie':4 'spots':5
                                  'search_release'  'and':2 'exploitation':3 'horror':1 'movie':4 'radio':5 'spots':6
                                     'search_rest'  '00commercials':2 '01':8 '0nonmusic':1 '30':9 'commercials':11 'movietrailer':5 'nonmusic':10 'radio':4 'trailers':6 'tv':3 'young':7
                                    'search_combo'  '00commercials':17 '01':2A,23 '0nonmusic':16 '30':4A,24 'and':6B,11C 'commercials':26 'exploitation':7B,12C 'frankenstein':1A 'frankenstein01':3A 'horror':5B,10C 'movie':8B,13C 'movietrailer':20 'nonmusic':25 'radio':14C,19 'spots':9B,15C 'trailers':21 'tv':18 'young':22
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1963
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528213.6212392  (2021-05-09 04:43:33)
                             'size'  442117