diff --git a/include/voice.h b/include/voice.h
new file mode 100644
index 0000000..c3f57f0
--- /dev/null
+++ b/include/voice.h
@@ -0,0 +1,7 @@
+#pragma once
+
+#include "osc.h"
+
+typedef struct {
+    OscVec oscs;
+} Voice;
diff --git a/src/main.c b/src/main.c
index bc64033..f4a5124 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,4 +1,3 @@
-#include <math.h>
 #include <pthread.h> // For mutex
 #include <raylib.h>
 #include <soundio/soundio.h>
diff --git a/src/voice.c b/src/voice.c
new file mode 100644
index 0000000..00e9261
--- /dev/null
+++ b/src/voice.c
@@ -0,0 +1 @@
+#include "voice.h"