======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '316'
                                          'artist'  'Iron Claw'
                                     'text_people'  ''
                                         'release'  'Cthullu Lives Volume 1: Lo Fi Riff Tsunami'
                                           'title'  'Pavement Artist'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', 'Q-CHART-1', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['proto metal', 'heavy metal', 'hard rock', 'progressive rock', 'heavy psych']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '102.6'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::XXX'                                         'http://aftersabbath.blogspot.com for more....'
'TALB' (Album/Movie/Show title)                     'Cthullu Lives Volume 1: Lo Fi Riff Tsunami'
'TBPM' (BPM (beats per minute))                     '102.6'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1972'
'TIT2' (Title/songname/content description)         'Pavement Artist'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Iron Claw'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:ignore'                                       '02. Ironclaw'
'TXXX:lastfmtags'                                   ['proto metal', 'heavy metal', 'hard rock', 'progressive rock', 'heavy psych']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.97 dB'
'TXXX:replaygain_track_peak'                        '0.730880'

========================== row from database ==========================
                                              'id'  1478096
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/va - cthullu lives volume 1 [lo fi riff tsunami]/cthullu lives vol.1 lo fi riff tsunami - 02 - iron claw - pavement artist - 1972_000.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  316
                                           'genre'  rock-cppex
                                        'filesize'  7611391
                                           'mtime'  1620736869
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy va cthullu lives volume [lo fi riff tsunami] cthullu lives vol.1 lo fi riff tsunami 02 iron claw pavement artist 1972_000 rock cppex
                                      'tag_artist'  Iron Claw
                                     'tag_release'  Cthullu Lives Volume 1: Lo Fi Riff Tsunami
                                       'tag_title'  Pavement Artist
                                             'bpm'  102.6
                                    'search_title'  'artist':2 'pavement':1
                                   'search_artist'  'claw':2 'iron':1
                                  'search_release'  '1':4,5 'cthullu':1 'fi':7 'lives':2 'lo':6 'riff':8 'tsunami':9 'volume':3
                                     'search_rest'  '000':20 '1':13 '1972':19 'artist':18 'classicprogpsy':1 'claw':16 'cppex':22 'cthullu':3 'fi':8 'iron':15 'lives':4 'lo':6,7 'pavement':17 'riff':9 'rock':21 'tsunami':10,11 'va':2 'vol':12 'vol1':14 'volume':5
                                    'search_combo'  '000':33 '1':8C,9C,26 '1972':32 'artist':2A,31 'classicprogpsy':14 'claw':4B,29 'cppex':35 'cthullu':5C,16 'fi':11C,21 'iron':3B,28 'lives':6C,17 'lo':10C,19,20 'pavement':1A,30 'riff':12C,22 'rock':34 'tsunami':13C,23,24 'va':15 'vol':25 'vol1':27 'volume':7C,18
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-4', 'Q-SYN-2', 'q-other-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['proto metal', 'heavy metal', 'hard rock', 'progressive rock', 'heavy psych']
                                        'tag_date'  1972
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736868.6236947  (2021-05-11 14:41:08)
                             'size'  7611391