======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '248'
                                          'artist'  'David Crosby'
                                     'text_people'  'Craig Doerge/David Crosby'
                                         'release'  'progsoup 50'
                                           'title'  'Melody'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', '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'  "['folk rock', 'singer-songwriter', 'classic rock', 'folk', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '50'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '119.758'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'B\x00+\x00B\x006\x00+\x004\x000\x002\x00B\x00+\x008\x009\x002\x008\x00+\x00D\x004\x00E\x001\x00+\x001\x002\x00A\x00A\x002\x00+\x001\x007\x00F\x00F\x004\x00+\x001\x00B\x006\x00F\x004\x00+\x001\x00F\x002\x004\x00F\x00+\x002\x003\x001\x00E\x005\x00+\x002\x006\x00E\x00C\x006\x00+\x002\x00C\x00A\x004\x002\x00+\x002\x00E\x00B\x00D\x00F\x00\x00\x00')
'PRIV:AverageLevel:²\x0c\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xb2\x0c\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 \x004\x008\x003\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x006\x007\x004\x007\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x001\x003\x003\x000\x002\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x00 \x004\x008\x003\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x006\x007\x004\x007\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x001\x003\x003\x000\x002\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x15\x1dí\x10AãRM¬ã]w¼,Ýò'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x15\x1d\xed\x10A\xe3RM\xac\xe3]w\xbc,\xdd\xf2')
'PRIV:WM/WMCollectionID:\x15\x1dí\x10AãRM¬ã]w¼,Ýò'  PRIV(owner='WM/WMCollectionID', data=b'\x15\x1d\xed\x10A\xe3RM\xac\xe3]w\xbc,\xdd\xf2')
'PRIV:WM/WMContentID:C\x01©þm7ÔI½\xa0¸j\x8cÃ÷ô'     PRIV(owner='WM/WMContentID', data=b'C\x01\xa9\xfem7\xd4I\xbd\xa0\xb8j\x8c\xc3\xf7\xf4')
'TALB' (Album/Movie/Show title)                     'progsoup 50'
'TBPM' (BPM (beats per minute))                     '119.758'
'TCOM' (Composer)                                   'Craig Doerge/David Crosby'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Melody'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'David Crosby'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'One Way'
'TRCK' (Track number/Position in set)               '50'
'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:lastfmtags'                                   ['folk rock', 'singer-songwriter', 'classic rock', 'folk', 'rock']
'TXXX:q-bass'                                       '3'
'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'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.848025'

========================== row from database ==========================
                                              'id'  1410357
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 50/2869 david crosby - melody.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  248
                                           'genre'  rock-cppex-progressive
                                        'filesize'  5973888
                                           'mtime'  1620737533
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 2869 david crosby melody rock cppex progressive
                                      'tag_artist'  David Crosby
                                     'tag_release'  progsoup 50
                                       'tag_title'  Melody
                                             'bpm'  119.758
                                    'search_title'  'melody':1
                                   'search_artist'  'crosby':2 'david':1
                                  'search_release'  '50':2 'progsoup':1
                                     'search_rest'  '2869':3 'classicprogpsy':1 'cppex':8 'crosby':5 'david':4 'melody':6 'progressive':9 'progsoup':2 'rock':7
                                    'search_combo'  '2869':8 '50':5C 'classicprogpsy':6 'cppex':13 'crosby':3B,10 'david':2B,9 'melody':1A,11 'progressive':14 'progsoup':4C,7 'rock':12
                                    'tag_tracknum'  50
                                      'num_images'  0
                                             'key'  7B
                                           '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-3', 'q-grit-2']
                                      'lastfmtags'  ['folk rock', 'singer-songwriter', 'classic rock', 'folk', 'rock']
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737532.6009378  (2021-05-11 14:52:12)
                             'size'  5973888