======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '147'
                                          'artist'  'Paul Anka'
                                     'text_people'  'Paul Anka'
                                         'release'  '30th Anniversary Collection'
                                           'title'  "It's Time To Cry"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', '60s', 'canadian', 'jazz', 'easy listening', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '144.233'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-043 POS 4'
'COMM:ID3v1 Comment:XXX'                            '59-043 POS 4'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x008\x00+\x009\x006\x00+\x002\x00C\x004\x000\x00+\x005\x00D\x009\x003\x00+\x008\x009\x002\x00E\x00+\x00A\x00C\x007\x001\x00+\x00C\x00B\x000\x00C\x00+\x001\x000\x001\x001\x007\x00+\x001\x002\x00F\x006\x009\x00+\x001\x005\x00E\x008\x007\x00+\x001\x008\x009\x00C\x003\x00+\x001\x00B\x009\x008\x001\x00+\x001\x00E\x005\x00F\x00A\x00+\x002\x001\x006\x003\x008\x00+\x002\x003\x00C\x005\x008\x00+\x002\x006\x005\x00B\x00B\x00+\x002\x008\x00E\x00B\x00A\x00+\x002\x00B\x00A\x001\x006\x00+\x002\x00F\x003\x00B\x009\x00+\x003\x006\x00B\x00E\x006\x00+\x003\x009\x009\x002\x007\x00+\x003\x00C\x00F\x003\x00A\x00+\x004\x000\x009\x005\x002\x00+\x004\x003\x00E\x006\x00D\x00+\x004\x007\x007\x00F\x00F\x00+\x004\x00C\x006\x006\x007\x00\x00\x00')
'PRIV:AverageLevel:ï\x0f\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xef\x0f\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/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 \x00 \x007\x003\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x005\x005\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x005\x005\x004\x003\x006\x001\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x00 \x00 \x007\x003\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x005\x005\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x005\x005\x004\x003\x006\x001\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:FÝ¿\x94ð\x91\x11M·çî@ô°\x0f%'  PRIV(owner='WM/WMCollectionGroupID', data=b'F\xdd\xbf\x94\xf0\x91\x11M\xb7\xe7\xee@\xf4\xb0\x0f%')
'PRIV:WM/WMCollectionID:FÝ¿\x94ð\x91\x11M·çî@ô°\x0f%'  PRIV(owner='WM/WMCollectionID', data=b'F\xdd\xbf\x94\xf0\x91\x11M\xb7\xe7\xee@\xf4\xb0\x0f%')
'PRIV:WM/WMContentID:ñ\x00N³Bæ)M\x80è\x85\x9f§û]\x1f'  PRIV(owner='WM/WMContentID', data=b'\xf1\x00N\xb3B\xe6)M\x80\xe8\x85\x9f\xa7\xfb]\x1f')
'TALB' (Album/Movie/Show title)                     '30th Anniversary Collection'
'TBPM' (BPM (beats per minute))                     '144.233'
'TCOM' (Composer)                                   'Paul Anka'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         "It's Time To Cry"
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '147573'
'TPE1' (Lead performer(s)/Soloist(s))               'Paul Anka'
'TPE2' (Band/orchestra/accompaniment)               'Paul Anka'
'TPUB' (Publisher)                                  'Rhino'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', '60s', 'canadian', 'jazz', 'easy listening', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.98 dB'
'TXXX:replaygain_track_peak'                        '0.596788'

========================== row from database ==========================
                                              'id'  1515225
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-043 - Paul Anka - It_s Time To Cry.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  147
                                           'genre'  prerock-swing
                                        'filesize'  5904307
                                           'mtime'  1620562669
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 043 It_s prerock swing
                                      'tag_artist'  Paul Anka
                                     'tag_release'  30th Anniversary Collection
                                       'tag_title'  It's Time To Cry
                                             'bpm'  144.233
                                    'search_title'  'cry':6 'it':1 'its':3 's':2 'time':4 'to':5
                                   'search_artist'  'anka':2 'paul':1
                                  'search_release'  '30th':1 'anniversary':2 'collection':3
                                     'search_rest'  '00oldiepop':5 '1959':6 '59':7 'country':4 'exotica':2 'it':8 'jazz':1 'oldies':3 'prerock':10 's':9 'swing':11
                                    'search_combo'  '00oldiepop':16 '1959':17 '30th':9C '59':18 'anka':8B 'anniversary':10C 'collection':11C 'country':15 'cry':6A 'exotica':13 'it':1A,19 'its':3A 'jazz':12 'oldies':14 'paul':7B 'prerock':21 's':2A,20 'swing':22 'time':4A 'to':5A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  5B
                                           '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['oldies', '60s', 'canadian', 'jazz', 'easy listening', 'swing']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562668.7210517  (2021-05-09 14:17:48)
                             'size'  5904307