======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '135'
                                          'artist'  'The Cheers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Black Denim Trousers'
                                           'quals'  ("['Q-JZFKS-3', '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-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['rock', 'blues', 'jefferson airplane cover', 'incompetent', 'rock and roll']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '056'
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '102.230'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x007\x00+\x009\x006\x00+\x004\x00B\x009\x006\x00+\x008\x002\x00D\x00B\x00+\x00D\x004\x000\x002\x00+\x001\x002\x008\x008\x00F\x00+\x001\x007\x002\x003\x00A\x00+\x001\x009\x00C\x00B\x001\x00+\x001\x00C\x004\x006\x005\x00+\x001\x00F\x00C\x00D\x00F\x00+\x002\x002\x00A\x006\x000\x00+\x002\x007\x00C\x00B\x005\x00+\x002\x00D\x003\x00A\x005\x00+\x003\x000\x006\x003\x00B\x00+\x003\x006\x001\x001\x006\x00+\x003\x00A\x00F\x004\x007\x00+\x003\x00E\x005\x007\x008\x00+\x004\x001\x001\x00D\x00F\x00+\x004\x003\x008\x00E\x00A\x00+\x004\x006\x00C\x00E\x001\x00+\x004\x009\x000\x00D\x00B\x00+\x004\x00C\x003\x002\x00A\x00+\x004\x00F\x001\x002\x00A\x00+\x005\x002\x00D\x001\x000\x00+\x005\x006\x00F\x00F\x006\x00\x00\x00')
'PRIV:AverageLevel:\n\x13\x00\x00'                  PRIV(owner='AverageLevel', data=b'\n\x13\x00\x00')
'PRIV:PeakValue:þ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xfe\x7f\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/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'TBPM' (BPM (beats per minute))                     '102.230'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         'Black Denim Trousers'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '135520'
'TPE1' (Lead performer(s)/Soloist(s))               'The Cheers'
'TRCK' (Track number/Position in set)               '056'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock', 'blues', 'jefferson airplane cover', 'incompetent', 'rock and roll']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'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'                        '+1.33 dB'
'TXXX:replaygain_track_peak'                        '0.507388'

========================== row from database ==========================
                                              'id'  1429855
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1955/1955-056 - The Cheers - Black Denim Trousers.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  135
                                           'genre'  prerock-unsorted
                                        'filesize'  5422364
                                           'mtime'  1620387474
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1955 1955 056 prerock unsorted
                                      'tag_artist'  The Cheers
                                     'tag_release'  None
                                       'tag_title'  Black Denim Trousers
                                             'bpm'  102.23
                                    'search_title'  'black':1 'denim':2 'trousers':3
                                   'search_artist'  'cheers':2 'the':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1955':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'unsorted':8
                                    'search_combo'  '00oldiepop':10 '1955':11 'black':1A 'cheers':5B 'country':9 'denim':2A 'exotica':7 'jazz':6 'oldies':8 'prerock':12 'the':4B 'trousers':3A 'unsorted':13
                                    'tag_tracknum'  56
                                      'num_images'  0
                                             'key'  6A
                                           '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-3', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['rock', 'blues', 'jefferson airplane cover', 'incompetent', 'rock and roll']
                                        'tag_date'  1955
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387474.3462324  (2021-05-07 13:37:54)
                             'size'  5422364