======================== unified (from filesystem) ========================
                                         'bitrate'  '233.139'
                                        'duration'  '236'
                                          'artist'  'Blood Stain Child'
                                     'text_people'  ''
                                         'release'  'Mystic Your Heart'
                                           'title'  'Be In For Killing Myself'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-4', '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'  ("['death metal', 'trance metal', 'metal', 'japanese', 'melodic death metal', "
 "'j metal']")
                                     'discogstags'  "['electronic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'eid-metal-death-melodic;loc-asia-japan'
                                             'bpm'  '95'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:WM/WMCollectionGroupID:\x9f\x87Sr{;EN¢~å*VÒJ&'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x9f\x87Sr{;EN\xa2~\xe5*V\xd2J&')
'PRIV:WM/WMCollectionID:\x9f\x87Sr{;EN¢~å*VÒJ&'     PRIV(owner='WM/WMCollectionID', data=b'\x9f\x87Sr{;EN\xa2~\xe5*V\xd2J&')
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'TALB' (Album/Movie/Show title)                     'Mystic Your Heart'
'TBPM' (BPM (beats per minute))                     '95'
'TCON' (Content type, a.k.a. Genre)                 ['eid-metal-death-melodic', 'loc-asia-japan']
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Be In For Killing Myself'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '235982'
'TPE1' (Lead performer(s)/Soloist(s))               'Blood Stain Child'
'TPE2' (Band/orchestra/accompaniment)               'Blood Stain Child'
'TPUB' (Publisher)                                  'Pony Canyon'
'TRCK' (Track number/Position in set)               '1'
'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'                                  ['electronic', 'rock']
'TXXX:lastfmtags'                                   ['death metal',
 'trance metal',
 'metal',
 'japanese',
 'melodic death metal',
 'j metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '4'
'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'                        '-2.42 dB'
'TXXX:replaygain_track_peak'                        '0.391522'

========================== row from database ==========================
                                              'id'  1396600
                                            'path'  /data/Music/Bulk/00dwimp/00metal/00death/Blood Stain Child/Mystic Your Heart/Blood Stain Child-Mystic Your Heart-Be In For Killing Myself.mp3
                                         'working'  None
                                         'bitrate'  233
                                    'duration_sec'  236
                                           'genre'  eid-metal-death-melodic;loc-asia-japan
                                        'filesize'  6881126
                                           'mtime'  1620301232
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 00death eid metal death melodic;loc asia japan
                                      'tag_artist'  Blood Stain Child
                                     'tag_release'  Mystic Your Heart
                                       'tag_title'  Be In For Killing Myself
                                             'bpm'  95.0
                                    'search_title'  'be':1 'for':3 'in':2 'killing':4 'myself':5
                                   'search_artist'  'blood':1 'child':3 'stain':2
                                  'search_release'  'heart':3 'mystic':1 'your':2
                                     'search_rest'  '00death':3 '00dwimp':1 '00metal':2 'asia':11 'death':6 'eid':4 'japan':12 'loc':8,10 'melodic':7,9 'metal':5
                                    'search_combo'  '00death':14 '00dwimp':12 '00metal':13 'asia':22 'be':1A 'blood':6B 'child':8B 'death':17 'eid':15 'for':3A 'heart':11C 'in':2A 'japan':23 'killing':4A 'loc':19,21 'melodic':18,20 'metal':16 'myself':5A 'mystic':9C 'stain':7B 'your':10C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           '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-4', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['death metal', 'trance metal', 'metal', 'japanese', 'melodic death metal', 'j metal']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic', 'rock']

============================== file details ==============================
                                           'mtime'  1620301232.232332  (2021-05-06 13:40:32)
                             'size'  6881126