5 files changed, 13 insertions, 26 deletions
diff --git a/quantum/audio/audio.h b/quantum/audio/audio.h
index 805cb4f7ab..bc00cd19e6 100644
--- a/quantum/audio/audio.h
+++ b/quantum/audio/audio.h
@@ -13,8 +13,8 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-#ifndef AUDIO_H
-#define AUDIO_H
+
+#pragma once
 
 #include <stdint.h>
 #include <stdbool.h>
@@ -103,5 +103,3 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat);
 #define PLAY_LOOP(note_array) play_notes(&note_array, NOTE_ARRAY_SIZE((note_array)), true)
 
 bool is_playing_notes(void);
-
-#endif
diff --git a/quantum/audio/luts.h b/quantum/audio/luts.h
index 6fdd3b4635..74980b292e 100644
--- a/quantum/audio/luts.h
+++ b/quantum/audio/luts.h
@@ -14,6 +14,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#pragma once
+
 #if defined(__AVR__)
 #    include <avr/io.h>
 #    include <avr/interrupt.h>
@@ -23,14 +25,9 @@
 #    include <hal.h>
 #endif
 
-#ifndef LUTS_H
-#    define LUTS_H
-
-#    define VIBRATO_LUT_LENGTH 20
+#define VIBRATO_LUT_LENGTH 20
 
-#    define FREQUENCY_LUT_LENGTH 349
+#define FREQUENCY_LUT_LENGTH 349
 
 extern const float    vibrato_lut[VIBRATO_LUT_LENGTH];
 extern const uint16_t frequency_lut[FREQUENCY_LUT_LENGTH];
-
-#endif /* LUTS_H */
diff --git a/quantum/audio/muse.h b/quantum/audio/muse.h
index 6f382a7fee..ad2f96e43a 100644
--- a/quantum/audio/muse.h
+++ b/quantum/audio/muse.h
@@ -1,9 +1,6 @@
-#ifndef MUSE_H
-#define MUSE_H
+#pragma once
 
 #include "quantum.h"
 #include "process_audio.h"
 
 uint8_t muse_clock_pulse(void);
-
-#endif
diff --git a/quantum/audio/musical_notes.h b/quantum/audio/musical_notes.h
index 9742e19c43..8ac6aafd38 100644
--- a/quantum/audio/musical_notes.h
+++ b/quantum/audio/musical_notes.h
@@ -14,8 +14,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef MUSICAL_NOTES_H
-#define MUSICAL_NOTES_H
+#pragma once
 
 // Tempo Placeholder
 #define TEMPO_DEFAULT 100
@@ -229,5 +228,3 @@
 #define NOTE_GF8 NOTE_FS8
 #define NOTE_AF8 NOTE_GS8
 #define NOTE_BF8 NOTE_AS8
-
-#endif
diff --git a/quantum/audio/voices.h b/quantum/audio/voices.h
index 0c45b0720e..abafa2b404 100644
--- a/quantum/audio/voices.h
+++ b/quantum/audio/voices.h
@@ -13,6 +13,9 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+
+#pragma once
+
 #include <stdint.h>
 #include <stdbool.h>
 #if defined(__AVR__)
@@ -21,14 +24,11 @@
 #include "wait.h"
 #include "luts.h"
 
-#ifndef VOICES_H
-#    define VOICES_H
-
 float voice_envelope(float frequency);
 
 typedef enum {
     default_voice,
-#    ifdef AUDIO_VOICES
+#ifdef AUDIO_VOICES
     something,
     drums,
     butts_fader,
@@ -41,12 +41,10 @@ typedef enum {
 // duty_fourth_down,
 // duty_third_down,
 // duty_fifth_third_down,
-#    endif
+#endif
     number_of_voices  // important that this is last
 } voice_type;
 
 void set_voice(voice_type v);
 void voice_iterate(void);
 void voice_deiterate(void);
-
-#endif