======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '310'
                                          'artist'  "Sinead O'connor"
                                     'text_people'  ''
                                         'release'  'GrandPassion & Elton John'
                                           'title'  'Sacrifice (Elton John)'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['female vocalists', 'irish', 'alternative', 'singer-songwriter', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '115.854'
                                             'key'  '5B'
                                        'acoustid'  ''
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 \x00 \x00 \x002\x000\x007\x001\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x000\x001\x006\x002\x002\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x002\x000\x007\x001\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x000\x001\x006\x002\x002\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x94\x80\x0fä®7\x0bA·¥p\x13÷\x01Ö¬'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x94\x80\x0f\xe4\xae7\x0bA\xb7\xa5p\x13\xf7\x01\xd6\xac')
'PRIV:WM/WMCollectionID:\x94\x80\x0fä®7\x0bA·¥p\x13÷\x01Ö¬'  PRIV(owner='WM/WMCollectionID', data=b'\x94\x80\x0f\xe4\xae7\x0bA\xb7\xa5p\x13\xf7\x01\xd6\xac')
'PRIV:WM/WMContentID:ùyÒù.<¸D\x9eFÕ¥\x98\x875\x7f'  PRIV(owner='WM/WMContentID', data=b'\xf9y\xd2\xf9.<\xb8D\x9eF\xd5\xa5\x98\x875\x7f')
'TALB' (Album/Movie/Show title)                     'GrandPassion & Elton John'
'TBPM' (BPM (beats per minute))                     '115.854'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TIT2' (Title/songname/content description)         'Sacrifice (Elton John)'
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '310256'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               "Sinead O'connor"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Polygram'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['female vocalists', 'irish', 'alternative', 'singer-songwriter', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.08 dB'
'TXXX:replaygain_track_peak'                        '0.817331'

========================== row from database ==========================
                                              'id'  1519769
                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Elton John Covers/Sinead O_Connor - Sacrifice (Elton John).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  310
                                           'genre'  rock-unsorted
                                        'filesize'  6256688
                                           'mtime'  1676053008
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA Covers O_Connor rock unsorted
                                      'tag_artist'  Sinead O'connor
                                     'tag_release'  GrandPassion & Elton John
                                       'tag_title'  Sacrifice (Elton John)
                                             'bpm'  115.854
                                    'search_title'  'elton':2,3 'john':4,5 'sacrifice':1
                                   'search_artist'  'connor':3 'o':2 'oconnor':4 'sinead':1
                                  'search_release'  'elton':2 'grand':4 'grandpassion':1 'john':3 'passion':5
                                     'search_rest'  '00poprockelectronic':1 'connor':5 'covers':3 'o':4 'rock':6 'unsorted':7 'va':2
                                    'search_combo'  '00poprockelectronic':15 'connor':8B,19 'covers':17 'elton':2A,3A,11C 'grand':13C 'grandpassion':10C 'john':4A,5A,12C 'o':7B,18 'oconnor':9B 'passion':14C 'rock':20 'sacrifice':1A 'sinead':6B 'unsorted':21 'va':16
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']
                                      'lastfmtags'  ['female vocalists', 'irish', 'alternative', 'singer-songwriter', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676053008.360806  (2023-02-10 19:16:48)
                             'size'  6256688