On , Pedro Lopez-Cabanillas &lt;pedro.lopez.cabanillas@gmail.com&gt; wrote:<br />&gt; Probably not, for most use cases. Bars are required for notation, and useful<br />&gt; for rhythm matters, but the important rhythm element is the beat,<br /><br />Apologies: I meant &quot;beat&quot; when I wrote bar in my previous email: it allows every<br />plugin / part of the engine to determine time signature independantly.<br /><br />-Harry