title: Figured-bass accidental only in brackets (lilypond syntax)
body: <p>In <code>lilypond</code> I need to put only the accidental of a figured-bass numeral in brackets--not the whole figure. Does the syntax allow this or is there a workaround?</p>
  
  <p>In the non-working example below, I can put the whole figure in brackets with <code>&lt; [6-] &gt;</code> but I want something like <code>&lt; 6[-] &gt;</code>.</p>
  
  <pre><code>\version "2.18.2"
  {
      \clef "bass"
      &lt;&lt;
       { c1 }
       \figures { &lt; 6[-] &gt;1 } 
      &gt;&gt;
  }
  </code></pre>