======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '123'
                                          'artist'  'Johnny Restivo'
                                     'text_people'  'Lee Cathy/Otis Blackwell'
                                         'release'  'Treasured Tunes, Vol. 1'
                                           'title'  "The Shape I'm In"
                                           '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-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'oldies', '60s', 'rock', 'male vocalists']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-easy'
                                             'bpm'  '89.374'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-458 POS 80'
'COMM:ID3v1 Comment:XXX'                            '59-458 POS 80'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x004\x00+\x009\x006\x00+\x003\x003\x00E\x002\x00+\x006\x003\x008\x008\x00+\x008\x00A\x007\x005\x00+\x00B\x008\x00B\x000\x00+\x00E\x004\x00A\x00E\x00+\x001\x000\x00A\x00D\x001\x00+\x001\x003\x006\x005\x002\x00+\x001\x005\x00A\x008\x00B\x00+\x001\x007\x00B\x00D\x008\x00+\x001\x00A\x005\x003\x001\x00+\x001\x00C\x00E\x00E\x009\x00+\x001\x00F\x00F\x00E\x005\x00+\x002\x002\x008\x000\x008\x00+\x002\x005\x002\x00E\x009\x00+\x002\x007\x00C\x005\x004\x00+\x002\x00B\x003\x000\x009\x00+\x002\x00D\x00E\x007\x001\x00+\x003\x000\x00A\x006\x008\x00+\x003\x003\x003\x001\x00C\x00+\x003\x005\x002\x004\x008\x00\x00\x00')
'PRIV:AverageLevel:\x1a\x13\x00\x00'                PRIV(owner='AverageLevel', data=b'\x1a\x13\x00\x00')
'PRIV:PeakValue:·}\x00\x00'                         PRIV(owner='PeakValue', data=b'\xb7}\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 \x003\x000\x005\x001\x005\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x005\x005\x005\x004\x000\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x003\x000\x005\x001\x005\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x005\x005\x005\x004\x000\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:¯µ\x03âçËCB\x97\x97ª³êp\xadì'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xaf\xb5\x03\xe2\xe7\xcbCB\x97\x97\xaa\xb3\xeap\xad\xec')
'PRIV:WM/WMCollectionID:¯µ\x03âçËCB\x97\x97ª³êp\xadì'  PRIV(owner='WM/WMCollectionID', data=b'\xaf\xb5\x03\xe2\xe7\xcbCB\x97\x97\xaa\xb3\xeap\xad\xec')
'PRIV:WM/WMContentID:\x0cw 5qI\x98C¼\x07Ëj`¡Ïá'     PRIV(owner='WM/WMContentID', data=b'\x0cw 5qI\x98C\xbc\x07\xcbj`\xa1\xcf\xe1')
'TALB' (Album/Movie/Show title)                     'Treasured Tunes, Vol. 1'
'TBPM' (BPM (beats per minute))                     '89.374'
'TCOM' (Composer)                                   'Lee Cathy/Otis Blackwell'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-easy'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         "The Shape I'm In"
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '123640'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Restivo'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Stardust'
'TRCK' (Track number/Position in set)               '8'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['rock and roll', 'oldies', '60s', 'rock', 'male vocalists']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.05 dB'
'TXXX:replaygain_track_peak'                        '0.411755'

========================== row from database ==========================
                                              'id'  1499081
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-458 - Johnny Restivo - The Shape I_m In.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  123
                                           'genre'  prerock-vocal-easy
                                        'filesize'  4945604
                                           'mtime'  1621625789
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 458 I_m prerock vocal easy
                                      'tag_artist'  Johnny Restivo
                                     'tag_release'  Treasured Tunes, Vol. 1
                                       'tag_title'  The Shape I'm In
                                             'bpm'  89.374
                                    'search_title'  'i':3 'im':5 'in':6 'm':4 'shape':2 'the':1
                                   'search_artist'  'johnny':1 'restivo':2
                                  'search_release'  '1':6 'treasured':1 'tunes':2,3 'vol':4,5
                                     'search_rest'  '00oldiepop':5 '1959':6 '458':8 '59':7 'country':4 'easy':13 'exotica':2 'i':9 'jazz':1 'm':10 'oldies':3 'prerock':11 'vocal':12
                                    'search_combo'  '00oldiepop':19 '1':14C '1959':20 '458':22 '59':21 'country':18 'easy':27 'exotica':16 'i':3A,23 'im':5A 'in':6A 'jazz':15 'johnny':7B 'm':4A,24 'oldies':17 'prerock':25 'restivo':8B 'shape':2A 'the':1A 'treasured':9C 'tunes':10C,11C 'vocal':26 'vol':12C,13C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['rock and roll', 'oldies', '60s', 'rock', 'male vocalists']
                                        'tag_date'  1959
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621625788.712122  (2021-05-21 21:36:28)
                             'size'  4945604