======================== unified (from filesystem) ========================
                                         'bitrate'  '174.718'
                                        'duration'  '455'
                                          'artist'  'Kraan'
                                     'text_people'  ''
                                         'release'  'progsoup 4'
                                           'title'  'Gut und richtig'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'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'  "['german', 'krautrock', 'fusion', 'progressive rock', 'psychedelic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '45'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '97.553'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'6\x00+\x009\x006\x00+\x004\x00A\x005\x001\x00+\x00D\x001\x00C\x004\x00+\x001\x004\x007\x003\x00F\x00+\x001\x00C\x00C\x008\x00C\x00+\x002\x002\x00B\x005\x002\x00+\x002\x009\x001\x00B\x009\x00\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 \x003\x009\x009\x008\x008\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x001\x008\x007\x003\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x006\x002\x004\x002\x001\x001\x009\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x003\x009\x009\x008\x008\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x001\x008\x007\x003\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x006\x002\x004\x002\x001\x001\x009\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x99\x0f\x059^SÙJ\x90Fª\x11a³º\x9a'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x99\x0f\x059^S\xd9J\x90F\xaa\x11a\xb3\xba\x9a')
'PRIV:WM/WMCollectionID:\x99\x0f\x059^SÙJ\x90Fª\x11a³º\x9a'  PRIV(owner='WM/WMCollectionID', data=b'\x99\x0f\x059^S\xd9J\x90F\xaa\x11a\xb3\xba\x9a')
'PRIV:WM/WMContentID:½Çà\x8d¬ZeM\x81kHÐ,Ó°\xad'     PRIV(owner='WM/WMContentID', data=b'\xbd\xc7\xe0\x8d\xacZeM\x81kH\xd0,\xd3\xb0\xad')
'TALB' (Album/Movie/Show title)                     'progsoup 4'
'TBPM' (BPM (beats per minute))                     '97.553'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'Gut und richtig'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '455000'
'TPE1' (Lead performer(s)/Soloist(s))               'Kraan'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '45'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['german', 'krautrock', 'fusion', 'progressive rock', 'psychedelic']
'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'                        '-0.43 dB'
'TXXX:replaygain_track_peak'                        '0.583229'

========================== row from database ==========================
                                              'id'  1412654
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup4/253  Kraan  - Gut und richtig.mp3
                                         'working'  None
                                         'bitrate'  174
                                    'duration_sec'  455
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  9940864
                                           'mtime'  1620737671
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup4 253 rock cppex progressive;set pl progspace
                                      'tag_artist'  Kraan
                                     'tag_release'  progsoup 4
                                       'tag_title'  Gut und richtig
                                             'bpm'  97.553
                                    'search_title'  'gut':1 'richtig':3 'und':2
                                   'search_artist'  'kraan':1
                                  'search_release'  '4':2 'progsoup':1
                                     'search_rest'  '253':4 'classicprogpsy':1 'cppex':6 'pl':11 'progressive':7,9 'progsoup':2 'progsoup4':3 'progspace':12 'rock':5 'set':8,10
                                    'search_combo'  '253':10 '4':6C 'classicprogpsy':7 'cppex':12 'gut':1A 'kraan':4B 'pl':17 'progressive':13,15 'progsoup':5C,8 'progsoup4':9 'progspace':18 'richtig':3A 'rock':11 'set':14,16 'und':2A
                                    'tag_tracknum'  45
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', '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'  ['german', 'krautrock', 'fusion', 'progressive rock', 'psychedelic']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737671.319651  (2021-05-11 14:54:31)
                             'size'  9940864