Reversed flat accidental with a downward arrow, a microtonal sign for adjusting a quarter-tone flat downward.
U+1D1F3MUSICAL SYMBOL REVERSED FLAT UPU+1D1F5MUSICAL SYMBOL REVERSED FLAT AND FLAT UPU+1D1F2MUSICAL SYMBOL ONE AND A HALF SHARP DOWNU+1D1F6MUSICAL SYMBOL REVERSED FLAT AND FLAT DOWNU+1D1F1MUSICAL SYMBOL ONE AND A HALF SHARP UPU+1D1F7MUSICAL SYMBOL DIGIT TWO WITH STROKEU+1D1F0MUSICAL SYMBOL HALF SHARP DOWNU+1D1F8MUSICAL SYMBOL DIGIT FOUR WITH STROKEU+1D1EFMUSICAL SYMBOL HALF SHARP UPU+1D1F9MUSICAL SYMBOL DIGIT FIVE WITH STROKEU+1D1EEMUSICAL SYMBOL REVERSED FLAT AND FLATU+1D1FAMUSICAL SYMBOL DIGIT SIX WITH STROKE256 characters in the Musical Symbols Unicode block, from number 245.
U+1D1F4MUSICAL SYMBOL REVERSED FLAT DOWNU+1D1F5MUSICAL SYMBOL REVERSED FLAT AND FLAT UPU+1D1F6MUSICAL SYMBOL REVERSED FLAT AND FLAT DOWNU+1D1F7MUSICAL SYMBOL DIGIT TWO WITH STROKEU+1D1F8MUSICAL SYMBOL DIGIT FOUR WITH STROKEU+1D1F9MUSICAL SYMBOL DIGIT FIVE WITH STROKEU+1D1FAMUSICAL SYMBOL DIGIT SIX WITH STROKEU+1D1FBMUSICAL SYMBOL DIGIT SEVEN WITH STROKEU+1D1FCMUSICAL SYMBOL DIGIT NINE WITH STROKEU+1D1FDMUSICAL SYMBOL DIGIT FIVE WITH LOW STROKEU+1D1FEMUSICAL SYMBOL DIGIT SEVEN WITH LOW STROKEU+1D1FFMUSICAL SYMBOL LONGA REST