======================== unified (from filesystem) ========================
                                         'bitrate'  '188.489'
                                        'duration'  '574'
                                          'artist'  'Jimi Hendrix'
                                     'text_people'  'Jimi Hendrix'
                                         'release'  'progsoup 19'
                                           'title'  'Who Knows'
                                           '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-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['guitar', 'blues', 'rock', 'psychedelic', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '29'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;rock-early-blues;rock-cppex;rock-cppex-psychedelic'
                                             'bpm'  '84.350'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{\x19\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x19\x00\x00')
'PRIV:PeakValue:!|\x00\x00'                         PRIV(owner='PeakValue', data=b'!|\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 \x009\x002\x001\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x008\x005\x009\x003\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x008\x002\x001\x004\x007\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x00 \x009\x002\x001\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x008\x005\x009\x003\x004\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x008\x002\x001\x004\x007\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:kø.\x9a\x94í(M\x81ó~ÿ\x14Ãñ|'  PRIV(owner='WM/WMCollectionGroupID', data=b'k\xf8.\x9a\x94\xed(M\x81\xf3~\xff\x14\xc3\xf1|')
'PRIV:WM/WMCollectionID:kø.\x9a\x94í(M\x81ó~ÿ\x14Ãñ|'  PRIV(owner='WM/WMCollectionID', data=b'k\xf8.\x9a\x94\xed(M\x81\xf3~\xff\x14\xc3\xf1|')
'PRIV:WM/WMContentID:«÷CÕ\x10Å\x8dJ±á¥CO\x9c²o'     PRIV(owner='WM/WMContentID', data=b'\xab\xf7C\xd5\x10\xc5\x8dJ\xb1\xe1\xa5CO\x9c\xb2o')
'TALB' (Album/Movie/Show title)                     'progsoup 19'
'TBPM' (BPM (beats per minute))                     '84.350'
'TCOM' (Composer)                                   'Jimi Hendrix'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive',
 'rock-early-blues',
 'rock-cppex',
 'rock-cppex-psychedelic']
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Who Knows'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimi Hendrix'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Classic Compact Disc'
'TRCK' (Track number/Position in set)               '29'
'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'                                   ['guitar', 'blues', 'rock', 'psychedelic', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.484436'

========================== row from database ==========================
                                              'id'  1416165
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 19/1086 jimi hendrix - Who Knows.mp3
                                         'working'  None
                                         'bitrate'  188
                                    'duration_sec'  574
                                           'genre'  rock-cppex-progressive;rock-early-blues;rock-cppex;rock-cppex-psychedelic
                                        'filesize'  13540269
                                           'mtime'  1635960309
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 1086 jimi hendrix rock cppex progressive;rock early blues;rock cppex;rock cppex psychedelic
                                      'tag_artist'  Jimi Hendrix
                                     'tag_release'  progsoup 19
                                       'tag_title'  Who Knows
                                             'bpm'  84.35
                                    'search_title'  'knows':2 'who':1
                                   'search_artist'  'hendrix':2 'jimi':1
                                  'search_release'  '19':2 'progsoup':1
                                     'search_rest'  '1086':3 'blues':13,15 'classicprogpsy':1 'cppex':7,17,19 'early':12 'hendrix':5 'jimi':4 'progressive':8,10 'progsoup':2 'psychedelic':21 'rock':6,9,11,14,16,18,20
                                    'search_combo'  '1086':9 '19':6C 'blues':19,21 'classicprogpsy':7 'cppex':13,23,25 'early':18 'hendrix':4B,11 'jimi':3B,10 'knows':2A 'progressive':14,16 'progsoup':5C,8 'psychedelic':27 'rock':12,15,17,20,22,24,26 'who':1A
                                    'tag_tracknum'  29
                                      'num_images'  0
                                             'key'  3A
                                           '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-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['guitar', 'blues', 'rock', 'psychedelic', 'classic rock']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1635960308.9413123  (2021-11-03 18:25:08)
                             'size'  13540269