Intervals</code> dataset.</li>
<li>Added more internal checks of note and chord syntax validity across functions that work with string representations (pre-<code>phrase</code> object construction).</li>
<li>Update older functions to utilize the new, more robust and stricter validation checks and offer more consistent <code>noteworthy</code> class output.</li>
<li>updated <code><a href="../reference/transpose.html">transpose()</a></code> to handle additional edge cases, including a new style option, <code>st