Adding more CSound models

src/lib/audio/engines/KarplusStrong.ts

@@ -39,6 +39,10 @@ export class KarplusStrong implements SynthEngine<KarplusStrongParams> {
     return 'generative' as const;
   }
 
+  getCategory() {
+    return 'Physical' as const;
+  }
+
   generate(params: KarplusStrongParams, sampleRate: number, duration: number): [Float32Array, Float32Array] {
     const numSamples = Math.floor(sampleRate * duration);
     const leftBuffer = new Float32Array(numSamples);