diff --git a/README.md b/README.md
index d2f20b1..addc2d6 100644
--- a/README.md
+++ b/README.md
@@ -10,5 +10,8 @@ This template should help get you started developing with Tauri, React and Types
 - Move meters polling logic outside dsp state because it causes re-render of everything tied to dsp constantly
 - Check render to improve perfoormances
 - Check in meter if clip bool is limit instead
+- On close disconenct all ds^p
+- Ma-trix gain block sometimes
+- Q out of range
 
 - Check end to end behavioour
\ No newline at end of file
diff --git a/src/features/dsp408/utils/graph/peq.ts b/src/features/dsp408/utils/graph/peq.ts
index 334469e..82d290e 100644
--- a/src/features/dsp408/utils/graph/peq.ts
+++ b/src/features/dsp408/utils/graph/peq.ts
@@ -139,16 +139,14 @@ function peqBandResponseDb(
 /** Sum of all bands' contributions at a given frequency. */
 function peqTotalCurveDb(
   freq: number,
-  bands: Record<PEQBand, PEQ>,
+  bands: Partial<Record<PEQBand, PEQ>>,
   sampleRate: number = DEFAULT_SAMPLE_RATE
 ): number {
-  let sum = 0;
-
-  for (const band of Object.values(PEQBand)) {
-    sum += peqBandResponseDb(freq, bands[band], sampleRate);
-  }
-
-  return sum;
+  return Object.values(bands).reduce(
+    (sum, band) =>
+      band ? sum + peqBandResponseDb(freq, band, sampleRate) : sum,
+    0
+  );
 }
 
 /**
@@ -307,16 +305,14 @@ function peqBandPhaseDeg(
 
 function peqTotalPhaseDeg(
   freq: number,
-  bands: Record<PEQBand, PEQ>,
+  bands: Partial<Record<PEQBand, PEQ>>,
   sampleRate: number = DEFAULT_SAMPLE_RATE
 ): number {
-  let sum = 0;
-
-  for (const band of Object.values(PEQBand)) {
-    sum += peqBandPhaseDeg(freq, bands[band], sampleRate);
-  }
-
-  return sum;
+  return Object.values(bands).reduce(
+    (sum, band) =>
+      band ? sum + peqBandPhaseDeg(freq, band, sampleRate) : sum,
+    0
+  );
 }
 
 export function getPeqPhasePoints({