From 05a43ef687729766524dde006964ef31cf045fce Mon Sep 17 00:00:00 2001
From: eefano <77832+eefano@users.noreply.github.com>
Date: Tue, 2 Jun 2026 13:14:30 +0200
Subject: [PATCH 1/4] included midichan value in midikeys haps

---
 packages/midi/midi.mjs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/midi/midi.mjs b/packages/midi/midi.mjs
index bd40b743e..51a077115 100644
--- a/packages/midi/midi.mjs
+++ b/packages/midi/midi.mjs
@@ -633,7 +633,7 @@ export async function midikeys(input) {
       */
       return;
     } else {
-      value = { ...value, note: Math.round(note), velocity: velocity / 127 };
+      value = { ...value, note: Math.round(note), velocity: velocity / 127, midichan: message.channel };
     }
     kHaps[input].push(new Hap(span, span, value, {}));
     if (!noteoff && triggerAvailable) {

From 0ae2c120b33ea5613d631625403505ad51c8cff6 Mon Sep 17 00:00:00 2001
From: eefano <77832+eefano@users.noreply.github.com>
Date: Tue, 2 Jun 2026 13:28:23 +0200
Subject: [PATCH 2/4] updated documentation for midikeys

---
 packages/midi/midi.mjs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/packages/midi/midi.mjs b/packages/midi/midi.mjs
index 51a077115..73383a378 100644
--- a/packages/midi/midi.mjs
+++ b/packages/midi/midi.mjs
@@ -536,6 +536,9 @@ export async function midin(input) {
  *
  * The note length is fixed as Superdough is not currently set up for undetermined
  * note durations
+ * 
+ * The 'midichan' control value contains the number of the channel the note is coming from
+ * so it could be filtered or manipulated further in the chain.
  *
  * @name midikeys
  * @tags external_io, midi
@@ -552,6 +555,10 @@ export async function midin(input) {
  *   .s("saw")
  *   .add(note(rand.mul(0.3)))
  *   .lpf(1000).lpe(2).room(0.5)
+ * @example
+ * // discard all notes not coming out from midi channel 2
+ * const kb = await midikeys('Arturia KeyStep 32')
+ * kb().filterValues(v=>v.midichan==2).s("tri")
  */
 const kHaps = {};
 const kListeners = {};

From 58f956b57e5f9f94be10e14c3d8ba954187637e9 Mon Sep 17 00:00:00 2001
From: eefano <77832+eefano@users.noreply.github.com>
Date: Tue, 2 Jun 2026 14:29:28 +0200
Subject: [PATCH 3/4] prettier fix

---
 packages/midi/midi.mjs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/midi/midi.mjs b/packages/midi/midi.mjs
index 73383a378..5880ca268 100644
--- a/packages/midi/midi.mjs
+++ b/packages/midi/midi.mjs
@@ -536,7 +536,7 @@ export async function midin(input) {
  *
  * The note length is fixed as Superdough is not currently set up for undetermined
  * note durations
- * 
+ *
  * The 'midichan' control value contains the number of the channel the note is coming from
  * so it could be filtered or manipulated further in the chain.
  *

From 2635716c878059ef5c5ee89898841a50fae9cc0f Mon Sep 17 00:00:00 2001
From: eefano <77832+eefano@users.noreply.github.com>
Date: Tue, 2 Jun 2026 14:56:55 +0200
Subject: [PATCH 4/4] added midikeys third test

---
 test/__snapshots__/examples.test.mjs.snap | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/__snapshots__/examples.test.mjs.snap b/test/__snapshots__/examples.test.mjs.snap
index f7989dc7e..f465f06bf 100644
--- a/test/__snapshots__/examples.test.mjs.snap
+++ b/test/__snapshots__/examples.test.mjs.snap
@@ -7927,6 +7927,8 @@ exports[`runs examples > example "midikeys" example index 0 1`] = `[]`;
 
 exports[`runs examples > example "midikeys" example index 1 1`] = `[]`;
 
+exports[`runs examples > example "midikeys" example index 2 1`] = `[]`;
+
 exports[`runs examples > example "midin" example index 0 1`] = `
 [
   "[ 0/1 → 1/4 | note:c cutoff:0 resonance:0 s:sawtooth ]",