======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '312'
                                          'artist'  'Martyn'
                                     'text_people'  ''
                                         'release'  'Great Lengths'
                                           'title'  'Vancouver'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['electronic', 'techno', 'dubstep', 'dnb', 'drum and bass']"
                                     'discogstags'  "['electronic', 'deep house', 'abstract', 'techno', 'dubstep']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '14'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '138.0'
                                             'key'  '9A'
                                        'acoustid'  'dcffc47c-2f7b-4206-b398-d23e1543c71b'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'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 \x001\x005\x001\x002\x000\x001\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x009\x001\x001\x005\x000\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x009\x003\x000\x007\x009\x002\x004\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x005\x001\x002\x000\x001\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x009\x001\x001\x005\x000\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x009\x003\x000\x007\x009\x002\x004\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x00+\x90\x16"Ù%L¾º¼>\x81ì1Î'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x00+\x90\x16"\xd9%L\xbe\xba\xbc>\x81\xec1\xce')
'PRIV:WM/WMCollectionID:\x00+\x90\x16"Ù%L¾º¼>\x81ì1Î'  PRIV(owner='WM/WMCollectionID', data=b'\x00+\x90\x16"\xd9%L\xbe\xba\xbc>\x81\xec1\xce')
'PRIV:WM/WMContentID:\x9bk)Iß\x01\x7fH«\x88Àý*\xa0\x8a¡'  PRIV(owner='WM/WMContentID', data=b'\x9bk)I\xdf\x01\x7fH\xab\x88\xc0\xfd*\xa0\x8a\xa1')
'TALB' (Album/Movie/Show title)                     'Great Lengths'
'TBPM' (BPM (beats per minute))                     '138.0'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Vancouver'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Martyn'
'TPE2' (Band/orchestra/accompaniment)               'Martyn'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  '3024'
'TRCK' (Track number/Position in set)               '6/14'
'TSO2'                                              'Martyn'
'TSOP' (Performer sort order)                       'Martyn'
'TSRC' (ISRC (international standard recording code))  'NLEF80800014'
'TXXX:ASIN'                                         'B001VE17TM'
'TXXX:Acoustid Id'                                  'dcffc47c-2f7b-4206-b398-d23e1543c71b'
'TXXX:CATALOGNUMBER'                                '3024 005CD'
'TXXX:MusicBrainz Album Artist Id'                  '329a39e5-1a9f-4a6a-8e68-49fc8b400a63'
'TXXX:MusicBrainz Album Id'                         'cc7308fa-11a0-438d-bc5b-09d47caefd34'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '329a39e5-1a9f-4a6a-8e68-49fc8b400a63'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'deep house', 'abstract', 'techno', 'dubstep']
'TXXX:lastfmtags'                                   ['electronic', 'techno', 'dubstep', 'dnb', 'drum and bass']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.41 dB'
'TXXX:replaygain_track_peak'                        '0.457283'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'7b8fd0b8-fa2c-4d21-8513-febd2e4f225f')

========================== row from database ==========================
                                              'id'  1379442
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Martyn - 3024005CD-mp3/Martyn-Great Lengths-006-Vancouver.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  312
                                           'genre'  electronic
                                        'filesize'  12539385
                                           'mtime'  1636913192
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer 3024005CD mp3 006 electronic
                                      'tag_artist'  Martyn
                                     'tag_release'  Great Lengths
                                       'tag_title'  Vancouver
                                             'bpm'  138.0
                                    'search_title'  'vancouver':1
                                   'search_artist'  'martyn':1
                                  'search_release'  'great':1 'lengths':2
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 '3024005cd':3 'electronic':5 'mp3':4
                                    'search_combo'  '00calmer':6 '00poprockelectronic':5 '3024005cd':7 'electronic':9 'great':3C 'lengths':4C 'martyn':2B 'mp3':8 'vancouver':1A
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'techno', 'dubstep', 'dnb', 'drum and bass']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic', 'deep house', 'abstract', 'techno', 'dubstep']

============================== file details ==============================
                                           'mtime'  1636913192.1644738  (2021-11-14 19:06:32)
                             'size'  12539385