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packages/tonal/test/tonal.test.mjs

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+import { strict as assert } from 'assert';
+import '../tonal.mjs'; // need to import this to add prototypes
+import { pure } from '../../core/strudel.mjs';
+
+describe('tonal', () => {
+  it('Should run tonal functions ', () => {
+    assert.deepStrictEqual(pure('c3').scale('C major').scaleTranspose(1)._firstCycleValues, ['D3']);
+  });
+});