======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '584'
                                          'artist'  'Ark'
                                     'text_people'  'Ark'
                                         'release'  'progsoup 49'
                                           'title'  "Can't Let Go"
                                           '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-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['power metal', 'progressive', 'metal', 'progressive metal', 'progressive "
 "rock']")
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '129.398'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'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 \x004\x008\x005\x005\x004\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x003\x004\x001\x002\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x006\x003\x009\x005\x002\x008\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x004\x008\x005\x005\x004\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x003\x004\x001\x002\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x006\x003\x009\x005\x002\x008\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:BY\x11Åù©GO´ñ\x98ÉLµ7\x19'  PRIV(owner='WM/WMCollectionGroupID', data=b'BY\x11\xc5\xf9\xa9GO\xb4\xf1\x98\xc9L\xb57\x19')
'PRIV:WM/WMCollectionID:BY\x11Åù©GO´ñ\x98ÉLµ7\x19'  PRIV(owner='WM/WMCollectionID', data=b'BY\x11\xc5\xf9\xa9GO\xb4\xf1\x98\xc9L\xb57\x19')
'PRIV:WM/WMContentID:Ñèr¡\x88uÈG§¾ì\x94µryå'        PRIV(owner='WM/WMContentID', data=b'\xd1\xe8r\xa1\x88u\xc8G\xa7\xbe\xec\x94\xb5ry\xe5')
'TALB' (Album/Movie/Show title)                     'progsoup 49'
'TBPM' (BPM (beats per minute))                     '129.398'
'TCOM' (Composer)                                   'Ark'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         "Can't Let Go"
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Ark'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Face Front'
'TRCK' (Track number/Position in set)               '2'
'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'                                  'electronic'
'TXXX:lastfmtags'                                   ['power metal', 'progressive', 'metal', 'progressive metal', 'progressive rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.27 dB'
'TXXX:replaygain_track_peak'                        '0.968452'

========================== row from database ==========================
                                              'id'  1518146
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 49/2767 Ark  - Can_t Let Go.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  584
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  14028471
                                           'mtime'  1620737509
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 2767 Can_t rock cppex progressive;set pl progspace
                                      'tag_artist'  Ark
                                     'tag_release'  progsoup 49
                                       'tag_title'  Can't Let Go
                                             'bpm'  129.398
                                    'search_title'  'can':1 'cant':3 'go':5 'let':4 't':2
                                   'search_artist'  'ark':1
                                  'search_release'  '49':2 'progsoup':1
                                     'search_rest'  '2767':3 'can':4 'classicprogpsy':1 'cppex':7 'pl':12 'progressive':8,10 'progsoup':2 'progspace':13 'rock':6 'set':9,11 't':5
                                    'search_combo'  '2767':11 '49':8C 'ark':6B 'can':1A,12 'cant':3A 'classicprogpsy':9 'cppex':15 'go':5A 'let':4A 'pl':20 'progressive':16,18 'progsoup':7C,10 'progspace':21 'rock':14 'set':17,19 't':2A,13
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['power metal', 'progressive', 'metal', 'progressive metal', 'progressive rock']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620737508.500719  (2021-05-11 14:51:48)
                             'size'  14028471