======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '288'
                                          'artist'  'Ambrosia'
                                     'text_people'  'Burleigh Drummond/David Pack'
                                         'release'  'progsoup 2'
                                           'title'  'Life Beyond L.A.'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soft rock', '70s', 'progressive rock', 'rock', 'classic rock']"
                                     'discogstags'  "['house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '51'
                                      'tracktotal'  ''
                                            'date'  '1978'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '127.364'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:ÿ\r\x00\x00'                     PRIV(owner='AverageLevel', data=b'\xff\r\x00\x00')
'PRIV:PeakValue:Xz\x00\x00'                         PRIV(owner='PeakValue', data=b'Xz\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 \x005\x000\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x005\x003\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x003\x001\x005\x001\x002\x000\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x00 \x00 \x005\x000\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x005\x003\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x003\x001\x005\x001\x002\x000\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x15Và\x86¨Ö\x8eJ£\x91\xadµD«0\x18'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x15V\xe0\x86\xa8\xd6\x8eJ\xa3\x91\xad\xb5D\xab0\x18')
'PRIV:WM/WMCollectionID:\x15Và\x86¨Ö\x8eJ£\x91\xadµD«0\x18'  PRIV(owner='WM/WMCollectionID', data=b'\x15V\xe0\x86\xa8\xd6\x8eJ\xa3\x91\xad\xb5D\xab0\x18')
'PRIV:WM/WMContentID:þi/òI#\x9eK\x8cqP³8´½Y'        PRIV(owner='WM/WMContentID', data=b'\xfei/\xf2I#\x9eK\x8cqP\xb38\xb4\xbdY')
'TALB' (Album/Movie/Show title)                     'progsoup 2'
'TBPM' (BPM (beats per minute))                     '127.364'
'TCOM' (Composer)                                   'Burleigh Drummond/David Pack'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1978'
'TIT2' (Title/songname/content description)         'Life Beyond L.A.'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ambrosia'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Wea International'
'TRCK' (Track number/Position in set)               '51'
'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'                                  ['house', 'electronic']
'TXXX:lastfmtags'                                   ['soft rock', '70s', 'progressive rock', 'rock', 'classic rock']
'TXXX:q-bass'                                       '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.75 dB'
'TXXX:replaygain_track_peak'                        '0.675872'

========================== row from database ==========================
                                              'id'  1413048
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup2/125 Ambrosia - Life Beyond L.A..mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  288
                                           'genre'  rock-cppex-progressive
                                        'filesize'  4615380
                                           'mtime'  1620737646
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup2 125 rock cppex progressive
                                      'tag_artist'  Ambrosia
                                     'tag_release'  progsoup 2
                                       'tag_title'  Life Beyond L.A.
                                             'bpm'  127.364
                                    'search_title'  'a':4 'beyond':2 'l':3 'la':5 'life':1
                                   'search_artist'  'ambrosia':1
                                  'search_release'  '2':2 'progsoup':1
                                     'search_rest'  '125':4 'classicprogpsy':1 'cppex':6 'progressive':7 'progsoup':2 'progsoup2':3 'rock':5
                                    'search_combo'  '125':12 '2':8C 'a':4A 'ambrosia':6B 'beyond':2A 'classicprogpsy':9 'cppex':14 'l':3A 'la':5A 'life':1A 'progressive':15 'progsoup':7C,10 'progsoup2':11 'rock':13
                                    'tag_tracknum'  51
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-grit-2']
                                      'lastfmtags'  ['soft rock', '70s', 'progressive rock', 'rock', 'classic rock']
                                        'tag_date'  1978
                                     'discogstags'  ['house', 'electronic']

============================== file details ==============================
                                           'mtime'  1620737646.4324017  (2021-05-11 14:54:06)
                             'size'  4615380