======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '606'
                                          'artist'  'Flash'
                                     'text_people'  'Colin Carter'
                                         'release'  'progsoup 49'
                                           'title'  'Lifetime'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['12', 'art rock', 'hard rock', 'progressive rock', 'glam rock']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '36'
                                      'tracktotal'  ''
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '123.482'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'5\x00+\x009\x006\x00+\x00B\x002\x005\x004\x00+\x001\x000\x00D\x007\x002\x00+\x001\x00E\x001\x00B\x006\x00+\x002\x000\x004\x005\x000\x00+\x002\x00B\x00D\x007\x006\x00\x00\x00')
'PRIV:AverageLevel:{\x1c\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x1c\x00\x00')
'PRIV:PeakValue:¡{\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1{\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\x003\x007\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x004\x002\x007\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x002\x009\x006\x005\x003\x001\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x00 \x007\x003\x007\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x004\x002\x007\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x002\x009\x006\x005\x003\x001\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x04\x94dB$_×N¼Î¶Q\x87\x95\x80È'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x04\x94dB$_\xd7N\xbc\xce\xb6Q\x87\x95\x80\xc8')
'PRIV:WM/WMCollectionID:\x04\x94dB$_×N¼Î¶Q\x87\x95\x80È'  PRIV(owner='WM/WMCollectionID', data=b'\x04\x94dB$_\xd7N\xbc\xce\xb6Q\x87\x95\x80\xc8')
'PRIV:WM/WMContentID:"\x1béò\x12%\x9cG¥<Þ-\x84Û©µ'  PRIV(owner='WM/WMContentID', data=b'"\x1b\xe9\xf2\x12%\x9cG\xa5<\xde-\x84\xdb\xa9\xb5')
'TALB' (Album/Movie/Show title)                     'progsoup 49'
'TBPM' (BPM (beats per minute))                     '123.482'
'TCOM' (Composer)                                   'Colin Carter'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '1972'
'TIT2' (Title/songname/content description)         'Lifetime'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '606000'
'TPE1' (Lead performer(s)/Soloist(s))               'Flash'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Capitol'
'TRCK' (Track number/Position in set)               '36'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['12', 'art rock', 'hard rock', 'progressive rock', 'glam rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.20 dB'
'TXXX:replaygain_track_peak'                        '0.369719'

========================== row from database ==========================
                                              'id'  1416435
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 49/2801 flash -  Lifetime.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  606
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  24250208
                                           'mtime'  1620737515
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 2801 flash rock cppex progressive;set pl progspace
                                      'tag_artist'  Flash
                                     'tag_release'  progsoup 49
                                       'tag_title'  Lifetime
                                             'bpm'  123.482
                                    'search_title'  'lifetime':1
                                   'search_artist'  'flash':1
                                  'search_release'  '49':2 'progsoup':1
                                     'search_rest'  '2801':3 'classicprogpsy':1 'cppex':6 'flash':4 'pl':11 'progressive':7,9 'progsoup':2 'progspace':12 'rock':5 'set':8,10
                                    'search_combo'  '2801':7 '49':4C 'classicprogpsy':5 'cppex':10 'flash':2B,8 'lifetime':1A 'pl':15 'progressive':11,13 'progsoup':3C,6 'progspace':16 'rock':9 'set':12,14
                                    'tag_tracknum'  36
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['12', 'art rock', 'hard rock', 'progressive rock', 'glam rock']
                                        'tag_date'  1972
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620737514.8295603  (2021-05-11 14:51:54)
                             'size'  24250208