======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '144'
                                          'artist'  'Ferlin Husky'
                                     'text_people'  ''
                                         'release'  'Hard to Find 45s on CD: Pop & Country Classics'
                                           'title'  'Gone'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-3', '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-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'all', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '042'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-country'
                                             'bpm'  '145.059'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x005\x00+\x009\x006\x00+\x002\x00B\x000\x005\x00+\x005\x00A\x00B\x00C\x00+\x008\x007\x00A\x00F\x00+\x00B\x004\x005\x000\x00+\x00D\x00E\x001\x007\x00+\x001\x000\x004\x00A\x007\x00+\x001\x003\x001\x00A\x002\x00+\x001\x005\x005\x00B\x009\x00+\x001\x008\x00B\x00E\x002\x00+\x001\x00B\x009\x00F\x004\x00+\x001\x00E\x00C\x00E\x005\x00+\x002\x001\x008\x007\x007\x00+\x002\x005\x004\x004\x004\x00+\x002\x008\x00D\x001\x000\x00+\x002\x00C\x00C\x005\x00A\x00+\x003\x000\x006\x00E\x00B\x00+\x003\x004\x00F\x000\x003\x00+\x003\x008\x009\x00D\x002\x00+\x003\x00C\x009\x003\x00C\x00+\x004\x000\x00E\x003\x007\x00+\x004\x004\x009\x00E\x007\x00\x00\x00')
'PRIV:AverageLevel:\t\x17\x00\x00'                  PRIV(owner='AverageLevel', data=b'\t\x17\x00\x00')
'PRIV:PeakValue:\x85~\x00\x00'                      PRIV(owner='PeakValue', data=b'\x85~\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 \x005\x008\x009\x003\x005\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x005\x009\x006\x001\x006\x004\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x008\x009\x003\x005\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x005\x009\x006\x001\x006\x004\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:Bnãü±G§H° \x05ñ®1IÊ'   PRIV(owner='WM/WMCollectionGroupID', data=b'Bn\xe3\xfc\xb1G\xa7H\xb0 \x05\xf1\xae1I\xca')
'PRIV:WM/WMCollectionID:Bnãü±G§H° \x05ñ®1IÊ'        PRIV(owner='WM/WMCollectionID', data=b'Bn\xe3\xfc\xb1G\xa7H\xb0 \x05\xf1\xae1I\xca')
'PRIV:WM/WMContentID:õ\x0eÈ\x02Ä<çKµ\x92\x7fp\x9f¤»\x8b'  PRIV(owner='WM/WMContentID', data=b'\xf5\x0e\xc8\x02\xc4<\xe7K\xb5\x92\x7fp\x9f\xa4\xbb\x8b')
'TALB' (Album/Movie/Show title)                     'Hard to Find 45s on CD: Pop & Country Classics'
'TBPM' (BPM (beats per minute))                     '145.059'
'TCON' (Content type, a.k.a. Genre)                 'prerock-country'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Gone'
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '144840'
'TPE1' (Lead performer(s)/Soloist(s))               'Ferlin Husky'
'TPUB' (Publisher)                                  'Eric'
'TRCK' (Track number/Position in set)               '042'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'all', 'classic country']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.49 dB'
'TXXX:replaygain_track_peak'                        '0.415789'

========================== row from database ==========================
                                              'id'  1429699
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-042 - Ferlin Husky - Gone.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  144
                                           'genre'  prerock-country
                                        'filesize'  5787269
                                           'mtime'  1621627905
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 042 prerock country
                                      'tag_artist'  Ferlin Husky
                                     'tag_release'  Hard to Find 45s on CD: Pop & Country Classics
                                       'tag_title'  Gone
                                             'bpm'  145.059
                                    'search_title'  'gone':1
                                   'search_artist'  'ferlin':1 'husky':2
                                  'search_release'  '45s':4 'cd':6,7 'classics':10 'country':9 'find':3 'hard':1 'on':5 'pop':8 'to':2
                                     'search_rest'  '00oldiepop':5 '1957':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':18 '1957':19 '45s':7C 'cd':9C,10C 'classics':13C 'country':12C,17 'exotica':15 'ferlin':2B 'find':6C 'gone':1A 'hard':4C 'husky':3B 'jazz':14 'oldies':16 'on':8C 'pop':11C 'prerock':20 'to':5C
                                    'tag_tracknum'  42
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', '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-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['country', 'all', 'classic country']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627904.8998566  (2021-05-21 22:11:44)
                             'size'  5787269