======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '393'
                                          'artist'  'Barney Kessel/Shelly Manne/Hampton Hawes/Red Mitchell'
                                     'text_people'  'Red Mitchell'
                                         'release'  'radio jazz 13'
                                           'title'  'Bow Jest'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-GRIT-1', 'Q-BUSY-3', 'Q-SYN-1', 'Q-MIXBEAT-2', 'Q-PLAY-2', "
 "'Q-CHART-2', 'q-bass-4', 'q-drums-2', 'q-other-3', 'q-piano-3', "
 "'q-vocals-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '142.9'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:AverageLevel:{\x0f\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x0f\x00\x00')
'PRIV:PeakValue:¡v\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1v\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 \x002\x001\x008\x006\x002\x004\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x008\x003\x008\x008\x002\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x002\x003\x004\x007\x000\x007\x008\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x002\x001\x008\x006\x002\x004\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x008\x003\x008\x008\x002\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x002\x003\x004\x007\x000\x007\x008\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ý!ݧÕ\x12aC\x9c"\x9cÓ~\x98·\x9c'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xfd!\xdd\xa7\xd5\x12aC\x9c"\x9c\xd3~\x98\xb7\x9c')
'PRIV:WM/WMCollectionID:ý!ݧÕ\x12aC\x9c"\x9cÓ~\x98·\x9c'  PRIV(owner='WM/WMCollectionID', data=b'\xfd!\xdd\xa7\xd5\x12aC\x9c"\x9c\xd3~\x98\xb7\x9c')
'PRIV:WM/WMContentID:\x0b ÑÄ\x8e\x8c¬@¥+Öÿ\x16ÃØï'  PRIV(owner='WM/WMContentID', data=b'\x0b \xd1\xc4\x8e\x8c\xac@\xa5+\xd6\xff\x16\xc3\xd8\xef')
'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '142.9'
'TCOM' (Composer)                                   'Red Mitchell'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Bow Jest'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '393533'
'TPE1' (Lead performer(s)/Soloist(s))               'Barney Kessel/Shelly Manne/Hampton Hawes/Red Mitchell'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Universal'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.75 dB'
'TXXX:replaygain_track_peak'                        '0.906898'

========================== row from database ==========================
                                              'id'  1482452
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Barney Kessel, Shelly Manne, Hampton Hawes & Red Mitchell - bow jest.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  393
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  15731168
                                           'mtime'  1620541323
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Kessel, Manne, & bow jest prerock jb unsorted
                                      'tag_artist'  Barney Kessel/Shelly Manne/Hampton Hawes/Red Mitchell
                                     'tag_release'  radio jazz 13
                                       'tag_title'  Bow Jest
                                             'bpm'  142.9
                                    'search_title'  'bow':1 'jest':2
                                   'search_artist'  'barney':1 'hampton':6 'hawes':8 'hawesred':10 'kessel':2 'kesselshelly':4 'manne':5 'mannehampton':7 'mitchell':11 'red':9 'shelly':3
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'bow':6 'jb':9 'jest':7 'kessel':2,3 'manne':4,5 'prerock':8 'unsorted':10
                                    'search_combo'  '00poprockelectronic':16 'barney':3B 'bow':1A,21 'hampton':8B 'hawes':10B 'hawesred':12B 'jazz':15C 'jb':24 'jest':2A,22 'kessel':4B,17,18 'kesselshelly':6B 'manne':7B,19,20 'mannehampton':9B 'mitchell':13B 'prerock':23 'radio':14C 'red':11B 'shelly':5B 'unsorted':25
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-3', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  []
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541323.2217257  (2021-05-09 08:22:03)
                             'size'  15731168