1 files changed, 17 insertions, 12 deletions
diff --git a/client/lib/midi.js b/client/lib/midi.js
index b22f2fe..1625368 100644
--- a/client/lib/midi.js
+++ b/client/lib/midi.js
@@ -116,8 +116,9 @@ export function play_sequence(i, bounds, diff, note_time, channel="all", exporti
   i += 1
   if (i >= count) i = 0
   const midi_note = play_note( norm(n, min, max) * nx.multiply.value, note_time, channel, exporting)
-  return [i, [midi_note]]
+  return [i, [midi_note], [128]]
 }
+// [next_i, notes, timings, pedal_note]
 
 /* play the next row as an interval */
 
@@ -142,7 +143,7 @@ export function play_interval_sequence(i, bounds, diff, note_time, channel="all"
 
 /* generate a 1-track midi file by calling the play function repeatedly */
 
-export function export_pattern_as_midi(datasetName, bounds, diff, tempo, timingIndex, play_fn, max_i) {
+export function export_pattern_as_midi(dataset, bounds, diff, tempo, timingIndex, play_fn, max_i) {
   // const behavior = document.querySelector('#behavior').value
   const { rows } = bounds
   // let count = behavior === 'sequence' ? rows[0].length * rows.length : rows.length
@@ -150,12 +151,14 @@ export function export_pattern_as_midi(datasetName, bounds, diff, tempo, timingI
   let notes, timings
   let note_time
   // let timing = note_values[timingIndex][2]
-  let pedal_note, next_i
+  let pedal_note, pedal_track, next_i
   let wait = 0
   let midi_track = new MidiWriter.Track()
   midi_track.setTempo(tempo)
-  let pedal_track = new MidiWriter.Track()
-  pedal_track.setTempo(tempo)
+  if (dataset.pedal) {
+    pedal_track = new MidiWriter.Track()
+    pedal_track.setTempo(tempo)
+  }
   for (let i = 0, len = max_i; i < len; i++) {
     [next_i, notes, timings, pedal_note] = play_fn(i, bounds, diff, note_time, "all", true)
     // if (timing.length) {
@@ -179,14 +182,16 @@ export function export_pattern_as_midi(datasetName, bounds, diff, tempo, timingI
       midi_track.addEvent(new MidiWriter.NoteEvent(e))
       wait = 0
     }
-    pedal_track.addEvent(new MidiWriter.NoteEvent({
-      pitch: pedal_note,
-      duration: 't128',
-      velocity: 25,
-    }))
+    if (dataset.pedal) {
+      pedal_track.addEvent(new MidiWriter.NoteEvent({
+        pitch: pedal_note,
+        duration: 't128',
+        velocity: 25,
+      }))
+    }
   }
-  let tracks = [midi_track, pedal_track]
+  let tracks = dataset.pedal ? [midi_track, pedal_track] : [midi_track]
   const writer = new MidiWriter.Writer(tracks)
   const blob = dataURItoBlob(writer.dataUri())
-  saveAs(blob, 'Recording - ' + datasetName + '.mid')
+  saveAs(blob, 'Recording - ' + dataset.name + '.mid')
 }