======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '143'
                                          'artist'  'P.J. & His Headliners'
                                     'text_people'  ''
                                         'release'  "30 Manly 1950's Wild Rock & Roll Instrumentals"
                                           'title'  'Anchor Rock'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['surf', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '24'
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '120.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x00E\x00+\x00A\x00F\x00+\x002\x006\x006\x001\x00+\x005\x002\x002\x00B\x00+\x007\x004\x004\x007\x00+\x008\x00F\x003\x004\x00+\x00B\x008\x006\x007\x00+\x00D\x00F\x009\x00A\x00+\x001\x000\x005\x002\x004\x00+\x001\x002\x00E\x00D\x00C\x00+\x001\x005\x002\x006\x006\x00+\x001\x006\x00F\x00E\x00B\x00+\x001\x009\x009\x003\x003\x00+\x001\x00B\x009\x00E\x00F\x00+\x001\x00D\x00B\x00C\x00D\x00+\x002\x000\x00B\x006\x001\x00+\x002\x002\x00F\x007\x009\x00+\x002\x005\x00E\x002\x009\x00+\x002\x007\x008\x008\x00A\x00+\x002\x009\x00B\x001\x007\x00+\x002\x00C\x005\x002\x004\x00+\x002\x00E\x00B\x007\x001\x00+\x003\x000\x00D\x009\x00F\x00+\x003\x003\x009\x001\x004\x00+\x003\x005\x00F\x004\x00A\x00+\x003\x008\x009\x005\x00A\x00+\x003\x00B\x001\x002\x00D\x00+\x003\x00E\x002\x000\x001\x00+\x004\x000\x002\x009\x00A\x00+\x004\x002\x007\x009\x00F\x00+\x004\x005\x005\x007\x001\x00+\x004\x007\x00A\x004\x00F\x00\x00\x00')
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'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 \x006\x003\x003\x000\x005\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x005\x001\x003\x000\x009\x000\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x006\x003\x003\x000\x005\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x005\x001\x003\x000\x009\x000\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:1Ìú4"ï\x05H\x9d\x12\x80Wª¡¹´'  PRIV(owner='WM/WMCollectionGroupID', data=b'1\xcc\xfa4"\xef\x05H\x9d\x12\x80W\xaa\xa1\xb9\xb4')
'PRIV:WM/WMCollectionID:1Ìú4"ï\x05H\x9d\x12\x80Wª¡¹´'  PRIV(owner='WM/WMCollectionID', data=b'1\xcc\xfa4"\xef\x05H\x9d\x12\x80W\xaa\xa1\xb9\xb4')
'PRIV:WM/WMContentID:\x0eåÂ4àã\x94G±e-\x05`äÔÏ'     PRIV(owner='WM/WMContentID', data=b'\x0e\xe5\xc24\xe0\xe3\x94G\xb1e-\x05`\xe4\xd4\xcf')
'TALB' (Album/Movie/Show title)                     "30 Manly 1950's Wild Rock & Roll Instrumentals"
'TBPM' (BPM (beats per minute))                     '120.9'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         'Anchor Rock'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '143573'
'TPE1' (Lead performer(s)/Soloist(s))               'P.J. & His Headliners'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Collector Records'
'TRCK' (Track number/Position in set)               '24'
'TXXX:BAND'                                         'Various Artists'
'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:discogstags'                                  ['surf', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.68 dB'
'TXXX:replaygain_track_peak'                        '0.528693'

========================== row from database ==========================
                                              'id'  1530811
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/The Starfires - 50_s Surf & Other Instrumental Madness/va - 30 Manly 1950's Wild Rock & Roll Instrumentals/24 - P.J. & His Headliners - Anchor Rock.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  143
                                           'genre'  rock-pop-surf
                                        'filesize'  5976534
                                           'mtime'  1620737181
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner The Starfires 50_s Surf Other Madness va 24 rock pop surf
                                      'tag_artist'  P.J. & His Headliners
                                     'tag_release'  30 Manly 1950's Wild Rock & Roll Instrumentals
                                       'tag_title'  Anchor Rock
                                             'bpm'  120.9
                                    'search_title'  'anchor':1 'rock':2
                                   'search_artist'  'headliners':5 'his':4 'j':2 'p':1 'pj':3
                                  'search_release'  '1950':3 '1950s':5 '30':1 'instrumentals':9 'manly':2 'rock':7 'roll':8 's':4 'wild':6
                                     'search_rest'  '24':12 '50':7 'garage':2 'madness':10 'other':9 'pop':14 'punk':1 'rock':13 's':8 'starfires':6 'stoner':4 'surf':3 'the':5 'va':11
                                    'search_combo'  '1950':10C '1950s':12C '24':28 '30':8C '50':23 'anchor':1A 'garage':18 'headliners':7B 'his':6B 'instrumentals':16C 'j':4B 'madness':26 'manly':9C 'other':25 'p':3B 'pj':5B 'pop':30 'punk':17 'rock':2A,14C,29 'roll':15C 's':11C,24 'starfires':22 'stoner':20 'surf':19 'the':21 'va':27 'wild':13C
                                    'tag_tracknum'  24
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1955
                                     'discogstags'  ['surf', 'rock']

============================== file details ==============================
                                           'mtime'  1620737181.2149348  (2021-05-11 14:46:21)
                             'size'  5976534