======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '100'
                                          'artist'  'Fats Domino'
                                     'text_people'  'A Domino; Dave Bartholomew'
                                         'release'  'My Blue Heaven: The Best of Fats Domino'
                                           'title'  "Whole Lotta Lovin'"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '93.371'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-061 POS 6'
'COMM:ID3v1 Comment:XXX'                            '59-061 POS 6'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x004\x00+\x00B\x006\x00+\x002\x006\x00C\x007\x00+\x005\x006\x00B\x008\x00+\x008\x006\x002\x009\x00+\x00B\x003\x003\x000\x00+\x00D\x005\x00E\x005\x00+\x00F\x00F\x007\x008\x00+\x001\x002\x009\x001\x002\x00+\x001\x005\x001\x005\x00D\x00+\x001\x007\x008\x004\x00C\x00+\x001\x009\x00D\x00B\x006\x00+\x001\x00C\x002\x000\x00F\x00+\x001\x00E\x005\x000\x005\x00+\x002\x000\x002\x008\x005\x00+\x002\x002\x007\x002\x007\x00+\x002\x004\x00B\x006\x009\x00+\x002\x007\x004\x009\x005\x00+\x002\x009\x00C\x007\x002\x00+\x002\x00B\x00F\x00E\x003\x00+\x002\x00E\x008\x003\x008\x00+\x003\x000\x00A\x00F\x007\x00\x00\x00')
'PRIV:AverageLevel:\x95\x10\x00\x00'                PRIV(owner='AverageLevel', data=b'\x95\x10\x00\x00')
'PRIV:PeakValue:\x14p\x00\x00'                      PRIV(owner='PeakValue', data=b'\x14p\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')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x00 \x006\x001\x002\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x007\x001\x005\x009\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x002\x000\x001\x003\x007\x002\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x00 \x006\x001\x002\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x007\x001\x005\x009\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x002\x000\x001\x003\x007\x002\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:e\x98òO\x96\x1cìC©ßCz\x92\x19\x9c\x86'  PRIV(owner='WM/WMCollectionGroupID', data=b'e\x98\xf2O\x96\x1c\xecC\xa9\xdfCz\x92\x19\x9c\x86')
'PRIV:WM/WMCollectionID:e\x98òO\x96\x1cìC©ßCz\x92\x19\x9c\x86'  PRIV(owner='WM/WMCollectionID', data=b'e\x98\xf2O\x96\x1c\xecC\xa9\xdfCz\x92\x19\x9c\x86')
'PRIV:WM/WMContentID:éÝ\x0b3¤»ÍD\x9a´°+V(¢S'        PRIV(owner='WM/WMContentID', data=b'\xe9\xdd\x0b3\xa4\xbb\xcdD\x9a\xb4\xb0+V(\xa2S')
'TALB' (Album/Movie/Show title)                     'My Blue Heaven: The Best of Fats Domino'
'TBPM' (BPM (beats per minute))                     '93.371'
'TCOM' (Composer)                                   'A Domino; Dave Bartholomew'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         "Whole Lotta Lovin'"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '100693'
'TPE1' (Lead performer(s)/Soloist(s))               'Fats Domino'
'TPE2' (Band/orchestra/accompaniment)               'Fats Domino'
'TPUB' (Publisher)                                  'EMI'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.11 dB'
'TXXX:replaygain_track_peak'                        '0.507204'

========================== row from database ==========================
                                              'id'  1519102
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-061 - Fats Domino - Whole Lotta Lovin_.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  100
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  4031505
                                           'mtime'  1622659481
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 061 Lovin_ rock pop early rocknroll
                                      'tag_artist'  Fats Domino
                                     'tag_release'  My Blue Heaven: The Best of Fats Domino
                                       'tag_title'  Whole Lotta Lovin'
                                             'bpm'  93.371
                                    'search_title'  'lotta':2 'lovin':3,4 'whole':1
                                   'search_artist'  'domino':2 'fats':1
                                  'search_release'  'best':6 'blue':2 'domino':9 'fats':8 'heaven':3,4 'my':1 'of':7 'the':5
                                     'search_rest'  '00oldiepop':5 '1959':6 '59':7 'country':4 'early':11 'exotica':2 'jazz':1 'lovin':8 'oldies':3 'pop':10 'rock':9 'rocknroll':12
                                    'search_combo'  '00oldiepop':20 '1959':21 '59':22 'best':12C 'blue':8C 'country':19 'domino':6B,15C 'early':26 'exotica':17 'fats':5B,14C 'heaven':9C,10C 'jazz':16 'lotta':2A 'lovin':3A,4A,23 'my':7C 'of':13C 'oldies':18 'pop':25 'rock':24 'rocknroll':27 'the':11C 'whole':1A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'rock n roll', 'rock and roll', 'blues', 'rhythm and blues', '50s']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659480.7682416  (2021-06-02 20:44:40)
                             'size'  4031505