======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '146'
                                          'artist'  'Fleetwoods'
                                     'text_people'  'DeWayne Blackwell'
                                         'release'  'The Best of the Fleetwoods'
                                           'title'  'Mr. Blue'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'pop', '60s', '50s', 'doo wop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '102.230'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         '59-013 POS 1'
'COMM:ID3v1 Comment:XXX'                            '59-013 POS 1'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x002\x00+\x00B\x006\x00+\x002\x00C\x001\x00A\x00+\x004\x00F\x009\x00E\x00+\x007\x005\x008\x00C\x00+\x009\x00C\x00D\x001\x00+\x00C\x00A\x007\x008\x00+\x00F\x004\x004\x007\x00+\x001\x002\x005\x008\x001\x00+\x001\x005\x000\x005\x00E\x00+\x001\x008\x006\x008\x002\x00+\x001\x00A\x00C\x003\x001\x00+\x001\x00D\x003\x004\x001\x00+\x001\x00F\x00D\x00D\x00A\x00+\x002\x002\x003\x00A\x008\x00+\x002\x005\x001\x009\x005\x00+\x002\x007\x00E\x007\x000\x00+\x002\x00B\x002\x008\x002\x00+\x002\x00D\x00D\x00E\x005\x00+\x003\x001\x001\x005\x00A\x00\x00\x00')
'PRIV:AverageLevel:\x03\x0f\x00\x00'                PRIV(owner='AverageLevel', data=b'\x03\x0f\x00\x00')
'PRIV:PeakValue:yk\x00\x00'                         PRIV(owner='PeakValue', data=b'yk\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 \x007\x004\x002\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x004\x002\x007\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x00 \x009\x005\x009\x009\x009\x008\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x00 \x007\x004\x002\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x004\x002\x007\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x00 \x009\x005\x009\x009\x009\x008\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:²MS£\x96cvF\x93ô¨2$\x93\x97\x1a'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xb2MS\xa3\x96cvF\x93\xf4\xa82$\x93\x97\x1a')
'PRIV:WM/WMCollectionID:²MS£\x96cvF\x93ô¨2$\x93\x97\x1a'  PRIV(owner='WM/WMCollectionID', data=b'\xb2MS\xa3\x96cvF\x93\xf4\xa82$\x93\x97\x1a')
'PRIV:WM/WMContentID:çæ\x95\x0bÆ2ªN\x94\x1a\r\x91ÕAK3'  PRIV(owner='WM/WMContentID', data=b'\xe7\xe6\x95\x0b\xc62\xaaN\x94\x1a\r\x91\xd5AK3')
'TALB' (Album/Movie/Show title)                     'The Best of the Fleetwoods'
'TBPM' (BPM (beats per minute))                     '102.230'
'TCOM' (Composer)                                   'DeWayne Blackwell'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TIT2' (Title/songname/content description)         'Mr. Blue'
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '146306'
'TPE1' (Lead performer(s)/Soloist(s))               'Fleetwoods'
'TPUB' (Publisher)                                  'Rhino'
'TRCK' (Track number/Position in set)               '8'
'TXXX:DATE'                                         '1959'
'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', 'pop', '60s', '50s', 'doo wop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                        '-0.39 dB'
'TXXX:replaygain_track_peak'                        '0.700737'

========================== row from database ==========================
                                              'id'  1429430
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-013 - Fleetwoods - Mr. Blue.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  146
                                           'genre'  prerock-unsorted
                                        'filesize'  5855913
                                           'mtime'  1621698395
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 013 prerock unsorted
                                      'tag_artist'  Fleetwoods
                                     'tag_release'  The Best of the Fleetwoods
                                       'tag_title'  Mr. Blue
                                             'bpm'  102.23
                                    'search_title'  'blue':3 'mr':1,2
                                   'search_artist'  'fleetwoods':1
                                  'search_release'  'best':2 'fleetwoods':4 'of':3 'the':1
                                     'search_rest'  '00oldiepop':5 '1959':6 '59':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':13 '1959':14 '59':15 'best':6C 'blue':3A 'country':12 'exotica':10 'fleetwoods':4B,8C 'jazz':9 'mr':1A,2A 'of':7C 'oldies':11 'prerock':16 'the':5C 'unsorted':17
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  1A
                                           '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'pop', '60s', '50s', 'doo wop']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698394.5164447  (2021-05-22 17:46:34)
                             'size'  5855913