======================== unified (from filesystem) ========================
                                         'bitrate'  '250.463'
                                        'duration'  '205'
                                          'artist'  'Norther'
                                     'text_people'  ''
                                         'release'  'Death Unlimited'
                                           'title'  'Deep Inside'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['power metal', 'finnish metal', 'finnish', 'death metal', 'metal', 'melodic "
 "death metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '89.890'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:¾&\x00\x00'                      PRIV(owner='AverageLevel', data=b'\xbe&\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\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)                     'Death Unlimited'
'TBPM' (BPM (beats per minute))                     '89.890'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Deep Inside'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Norther'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['power metal',
 'finnish metal',
 'finnish',
 'death metal',
 'metal',
 'melodic death metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.67 dB'
'TXXX:replaygain_track_peak'                        '0.435533'

========================== row from database ==========================
                                              'id'  1258741
                                            'path'  /data/Music/Bulk/00dwimp/Norther/Death Unlimited/Norther - (2004) Death Unlimited - 02 - Deep Inside.mp3
                                         'working'  None
                                         'bitrate'  250
                                    'duration_sec'  205
                                           'genre'  eid-metal-death
                                        'filesize'  6450791
                                           'mtime'  1620302126
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp (2004) 02 eid metal death
                                      'tag_artist'  Norther
                                     'tag_release'  Death Unlimited
                                       'tag_title'  Deep Inside
                                             'bpm'  89.89
                                    'search_title'  'deep':1 'inside':2
                                   'search_artist'  'norther':1
                                  'search_release'  'death':1 'unlimited':2
                                     'search_rest'  '00dwimp':1 '2004':2,3 'death':6 'eid':4 'metal':5
                                    'search_combo'  '00dwimp':6 '2004':7,8 'death':4C,11 'deep':1A 'eid':9 'inside':2A 'metal':10 'norther':3B 'unlimited':5C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['power metal', 'finnish metal', 'finnish', 'death metal', 'metal', 'melodic death metal']
                                        'tag_date'  2004
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302125.733262  (2021-05-06 13:55:25)
                             'size'  6450791