======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '184'
                                          'artist'  'Carpathian Forest'
                                     'text_people'  ''
                                         'release'  'Strange Old Brew'
                                           'title'  'Theme from Nekromantikk'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['norwegian', 'true norwegian black metal', 'black metal', 'metal', "
 "'norwegian black metal']")
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '135.094'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:_!\x00\x00'                      PRIV(owner='AverageLevel', data=b'_!\x00\x00')
'PRIV:PeakValue:þ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xfe\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)                     'Strange Old Brew'
'TBPM' (BPM (beats per minute))                     '135.094'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Theme from Nekromantikk'
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '184764'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Carpathian Forest'
'TRCK' (Track number/Position in set)               '10'
'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'                                  ['black metal', 'rock']
'TXXX:lastfmtags'                                   ['norwegian',
 'true norwegian black metal',
 'black metal',
 'metal',
 'norwegian black metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.86 dB'
'TXXX:replaygain_track_peak'                        '0.430523'

========================== row from database ==========================
                                              'id'  1400848
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Carpathian Forest/Strange Old Brew/10 - Theme From Nekromantikk.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  184
                                           'genre'  eid-metal
                                        'filesize'  2959238
                                           'mtime'  1620300543
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 10 From eid metal
                                      'tag_artist'  Carpathian Forest
                                     'tag_release'  Strange Old Brew
                                       'tag_title'  Theme from Nekromantikk
                                             'bpm'  135.094
                                    'search_title'  'from':2 'nekromantikk':3 'theme':1
                                   'search_artist'  'carpathian':1 'forest':2
                                  'search_release'  'brew':3 'old':2 'strange':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'eid':4 'from':3 'metal':5
                                    'search_combo'  '00dwimp':9 '00metal':10 'brew':8C 'carpathian':4B 'eid':12 'forest':5B 'from':2A,11 'metal':13 'nekromantikk':3A 'old':7C 'strange':6C 'theme':1A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['norwegian', 'true norwegian black metal', 'black metal', 'metal', 'norwegian black metal']
                                        'tag_date'  2000
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620300543.0667644  (2021-05-06 13:29:03)
                             'size'  2959238