diff --git a/sound/sound_banks/0D.json b/sound/sound_banks/0D.json
index 4a74bac4..25f9028c 100644
--- a/sound/sound_banks/0D.json
+++ b/sound/sound_banks/0D.json
@@ -74,14 +74,14 @@
             "release_rate": 100,
             "normal_range_lo": 41,
             "envelope": "envelope0",
-            "sound_lo": "00",
+            "sound_lo": "00_banjo_D2",
             "sound": "01_banjo_A2"
         },
         "inst1": {
             "release_rate": 100,
             "normal_range_lo": 41,
             "envelope": "envelope1",
-            "sound_lo": "00",
+            "sound_lo": "00_banjo_D2",
             "sound": "01_banjo_A2"
         },
         "inst2": {
diff --git a/sound/sound_banks/13.json b/sound/sound_banks/13.json
index c9bbae72..46bf8b39 100644
--- a/sound/sound_banks/13.json
+++ b/sound/sound_banks/13.json
@@ -160,7 +160,7 @@
         "inst5": {
             "release_rate": 10,
             "envelope": "envelope6",
-            "sound": "26_crystal_rhodes"
+            "sound": "26_crystal_rhodes_C4"
         },
         "inst6": {
             "release_rate": 10,