======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '296'
                                          'artist'  "Old Man's Child"
                                     'text_people'  ''
                                         'release'  'In Defiance of Existence'
                                           'title'  'In Defiance of Existance'
                                           '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-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['melodic black metal', 'symphonic black metal', 'black metal', 'metal', "
 "'norwegian']")
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'eid-metal-black'
                                             'bpm'  '140.1'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:\x82*\x00\x00'                   PRIV(owner='AverageLevel', data=b'\x82*\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)                     'In Defiance of Existence'
'TBPM' (BPM (beats per minute))                     '140.1'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-black'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'In Defiance of Existance'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               "Old Man's Child"
'TRCK' (Track number/Position in set)               '4'
'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'                                   ['melodic black metal',
 'symphonic black metal',
 'black metal',
 'metal',
 'norwegian']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.14 dB'
'TXXX:replaygain_track_peak'                        '0.484831'

========================== row from database ==========================
                                              'id'  1523374
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Old Man_s Child/In Defiance Of Existence [2003]/04 In_Defiance_of_Existance.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  296
                                           'genre'  eid-metal-black
                                        'filesize'  7124400
                                           'mtime'  1620301748
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Man_s Of [2003] 04 In_Defiance_of_Existance eid metal black
                                      'tag_artist'  Old Man's Child
                                     'tag_release'  In Defiance of Existence
                                       'tag_title'  In Defiance of Existance
                                             'bpm'  140.1
                                    'search_title'  'defiance':2 'existance':4 'in':1 'of':3
                                   'search_artist'  'child':5 'man':2 'mans':4 'old':1 's':3
                                  'search_release'  'defiance':2 'existence':4 'in':1 'of':3
                                     'search_rest'  '00dwimp':1 '00metal':2 '2003':6,7 'black':14 'defiance':9 'eid':12 'existance':11 'in':8 'man':3 'metal':13 'of':5,10 's':4
                                    'search_combo'  '00dwimp':14 '00metal':15 '2003':19,20 'black':27 'child':9B 'defiance':2A,11C,22 'eid':25 'existance':4A,24 'existence':13C 'in':1A,10C,21 'man':6B,16 'mans':8B 'metal':26 'of':3A,12C,18,23 'old':5B 's':7B,17
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  2A
                                           '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['melodic black metal', 'symphonic black metal', 'black metal', 'metal', 'norwegian']
                                        'tag_date'  2003
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620301748.3382568  (2021-05-06 13:49:08)
                             'size'  7124400