added xen example

packages/xen/xen.mjs

@@ -92,6 +92,8 @@ const trimFreq = freq => parseFloat(freq.toPrecision(10));
  * "0 1 2 3 4 5".xen("hexany15")
  * // equiv to:
  * // "0 1 2 3 4 5".tune("hexany15").mul("220").freq()
+ * @example
+ * n("0 1 2 3 4 5 6 7").xen("<5edo 10edo 15edo hexany15>")
  */
 
 // TODO feat: change root frequency

test/__snapshots__/examples.test.mjs.snap

@@ -14349,6 +14349,43 @@ exports[`runs examples > example "xen" example index 2 1`] = `
 ]
 `;
 
+exports[`runs examples > example "xen" example index 3 1`] = `
+[
+  "[ 0/1 → 1/8 | freq:220 ]",
+  "[ 1/8 → 1/4 | freq:252.7136381 ]",
+  "[ 1/4 → 3/8 | freq:290.2917404 ]",
+  "[ 3/8 → 1/2 | freq:333.4576446 ]",
+  "[ 1/2 → 5/8 | freq:383.0422479 ]",
+  "[ 5/8 → 3/4 | freq:440 ]",
+  "[ 3/4 → 7/8 | freq:505.4272762 ]",
+  "[ 7/8 → 1/1 | freq:580.5834807 ]",
+  "[ 1/1 → 9/8 | freq:220 ]",
+  "[ 9/8 → 5/4 | freq:235.7901618 ]",
+  "[ 5/4 → 11/8 | freq:252.7136381 ]",
+  "[ 11/8 → 3/2 | freq:270.8517709 ]",
+  "[ 3/2 → 13/8 | freq:290.2917404 ]",
+  "[ 13/8 → 7/4 | freq:311.1269837 ]",
+  "[ 7/4 → 15/8 | freq:333.4576446 ]",
+  "[ 15/8 → 2/1 | freq:357.3910544 ]",
+  "[ 2/1 → 17/8 | freq:220 ]",
+  "[ 17/8 → 9/4 | freq:230.404707 ]",
+  "[ 9/4 → 19/8 | freq:241.3014955 ]",
+  "[ 19/8 → 5/2 | freq:252.7136381 ]",
+  "[ 5/2 → 21/8 | freq:264.6655079 ]",
+  "[ 21/8 → 11/4 | freq:277.182631 ]",
+  "[ 11/4 → 23/8 | freq:290.2917404 ]",
+  "[ 23/8 → 3/1 | freq:304.0208336 ]",
+  "[ 3/1 → 25/8 | freq:220 ]",
+  "[ 25/8 → 13/4 | freq:275 ]",
+  "[ 13/4 → 27/8 | freq:293.3333333 ]",
+  "[ 27/8 → 7/2 | freq:330 ]",
+  "[ 7/2 → 29/8 | freq:352 ]",
+  "[ 29/8 → 15/4 | freq:440 ]",
+  "[ 15/4 → 31/8 | freq:550 ]",
+  "[ 31/8 → 4/1 | freq:586.6666667 ]",
+]
+`;
+
 exports[`runs examples > example "xfade" example index 0 1`] = `
 [
   "[ 0/1 → 1/8 | s:hh gain:0 ]",