diff --git a/README.md b/README.md
index d5e49a0..db584cb 100755
--- a/README.md
+++ b/README.md
@@ -4,6 +4,14 @@ ESP-IDF version `v5.3.2`
 
 Firmware for the BLK_BOX Top control board for the puzzle `PDE001`.
 
-Convert audio files to 44100Hz mono signed 16 uncompressed .wav files with the following command:
+## Resources
+
+All the files in the `resources/` folder should be loaded onto a micro SD card placed in the BLK_BOX.
+
+Developer Note: You can convert mp3 files to 44100Hz mono signed 16 uncompressed .wav files with the following command:
 ```ffmpeg -i input.mp3 -ac 1 -ar 44100 -sample_fmt s16 output.wav```
 
+File names must be no longer than `8` characters not including the extention
+File extentions must be no longer than `3` characters.
+
+
diff --git a/main/drivers/bottom_half.cpp b/main/drivers/bottom_half.cpp
index 841fdf3..b88e3cc 100644
--- a/main/drivers/bottom_half.cpp
+++ b/main/drivers/bottom_half.cpp
@@ -286,8 +286,8 @@ bool get_switch_flipped(SwitchKey* switch_) {
                 *switch_ = (SwitchKey) i;
             }
             // clear bit
-            button_pressed &= ~bit_selector;
-            button_released &= ~bit_selector;
+            switch_flipped_up &= ~bit_selector;
+            switch_flipped_down &= ~bit_selector;
             return true;
         }
     }
diff --git a/main/drivers/speaker.h b/main/drivers/speaker.h
index f27b45f..16d190f 100644
--- a/main/drivers/speaker.h
+++ b/main/drivers/speaker.h
@@ -20,7 +20,7 @@
 #define SPEAKER_PIN_DOUT  GPIO_NUM_3
 #define SAMPLE_RATE 44100
 // The maximum number of clips that can be queued at one time.
-#define CLIP_QUEUE_SIZE 8
+#define CLIP_QUEUE_SIZE 64
 
 extern i2s_chan_handle_t tx_chan;
 
diff --git a/main/drivers/sseg.cpp b/main/drivers/sseg.cpp
index 5d2f890..e7319e9 100644
--- a/main/drivers/sseg.cpp
+++ b/main/drivers/sseg.cpp
@@ -13,18 +13,31 @@ void init_sseg() {
     ESP_LOGI(TAG, "Sseg initialized!");
 }
 
-void set_game_sseg_raw(const uint8_t* digits) {
-    sseg->setSegments(digits[0], 0);
-    sseg->setSegments(digits[1], 1);
-    sseg->setSegments(digits[2], 2);
-    sseg->setSegments(digits[3], 3);
+void set_game_sseg_raw(const uint8_t* segments) {
+    sseg->setSegments(segments[0], 0);
+    sseg->setSegments(segments[1], 1);
+    sseg->setSegments(segments[2], 2);
+    sseg->setSegments(segments[3], 3);
+}
+void clear_game_sseg() {
+    sseg->setSegments(0, 0);
+    sseg->setSegments(0, 1);
+    sseg->setSegments(0, 2);
+    sseg->setSegments(0, 3);
 }
 
-void set_module_sseg_raw(const uint8_t* digits) {
-    sseg->setSegments(digits[0], 4);
-    sseg->setSegments(digits[1], 5);
-    sseg->setSegments(digits[2], 6);
-    sseg->setSegments(digits[3], 7);
+void set_module_sseg_raw(const uint8_t* segments) {
+    sseg->setSegments(segments[0], 4);
+    sseg->setSegments(segments[1], 5);
+    sseg->setSegments(segments[2], 6);
+    sseg->setSegments(segments[3], 7);
+}
+
+void clear_module_sseg() {
+    sseg->setSegments(0, 4);
+    sseg->setSegments(0, 5);
+    sseg->setSegments(0, 6);
+    sseg->setSegments(0, 7);
 }
 
 void set_game_sseg_num(uint32_t value, uint8_t dot_pos) {
diff --git a/main/drivers/sseg.h b/main/drivers/sseg.h
index 5e6a76e..ab5c20d 100644
--- a/main/drivers/sseg.h
+++ b/main/drivers/sseg.h
@@ -12,19 +12,25 @@ extern TM1640* sseg;
 /// Initializes the seven segment driver
 void init_sseg();
 
-/// sets the game seven segment to the value of the digits
+/// @brief Sets the game seven segment to the value of `segments`.
 ///
 /// the bits 0-6 map to segments A-G, and bit 7 is DP.
 ///
 /// `digits` must have len >= 4.
-void set_game_sseg_raw(const uint8_t* digits);
+void set_game_sseg_raw(const uint8_t* segments);
 
-/// sets the module seven segment to the value of the digits
+/// @brief Clears the game seven segment display.
+void clear_game_sseg();
+
+/// @brief Sets the module seven segment to the value of the `segments`.
 ///
 /// the bits 0-6 map to segments A-G, and bit 7 is DP.
 ///
 /// `digits` must have len >= 4.
-void set_module_sseg_raw(const uint8_t* digits);
+void set_module_sseg_raw(const uint8_t* segments);
+
+/// @brief Clears the game seven segment display.
+void clear_module_sseg();
 
 /// sets the game timer to the given number, with the dot at position `dot_pos` from the right (0 => right-most digit).
 void set_game_sseg_num(uint32_t value, uint8_t dot_pos);
diff --git a/main/main.cpp b/main/main.cpp
index 55779ba..b2239a8 100755
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -49,7 +49,7 @@ extern "C" void app_main(void) {
 
     stop_game_timer();
     ESP_LOGI(TAG, "Bomb has been diffused. Counter-Terrorists win.");
-    play_clip_wav(MOUNT_POINT "/diffused.wav", true, false, 3, 0);
+    play_clip_wav(MOUNT_POINT "/diffuse.wav", true, false, 3, 0);
 
     display_game_results();
 }
diff --git a/main/steps/step1.cpp b/main/steps/step1.cpp
index 05106f8..f71f4a7 100644
--- a/main/steps/step1.cpp
+++ b/main/steps/step1.cpp
@@ -263,8 +263,12 @@ static bool play_part(uint32_t time) {
         lv_label_set_text(text, "");
         xSemaphoreGive(xGuiSemaphore);
     }
-    vTaskDelay(pdMS_TO_TICKS(80));
-    play_clip_wav(MOUNT_POINT "/correct.wav", true, false, 3, 0);
+    if (part == 2) {
+        play_clip_wav(MOUNT_POINT "/stepdone.wav", true, false, 0, 0);
+        vTaskDelay(pdMS_TO_TICKS(2000));
+    } else {
+        play_clip_wav(MOUNT_POINT "/partdone.wav", true, false, 1, 0);
+    }
     return true;
 }
 
diff --git a/main/steps/step2.cpp b/main/steps/step2.cpp
index cf7fa11..5c04d11 100644
--- a/main/steps/step2.cpp
+++ b/main/steps/step2.cpp
@@ -100,14 +100,14 @@ void step2(void) {
             char c = char_of_keypad_key(key);
             // ESP_LOGI(TAG, "Pressed: %c", c);
             if (c == answer_char) {
-                play_clip_wav(MOUNT_POINT "/correct.wav", true, false, 3, 0);
                 solved_times++;
                 if (solved_times < NUM_SOLVES) {
+                    play_clip_wav(MOUNT_POINT "/stepdone.wav", true, false, 0, 0);
                     clean_bomb();
                     new_puzzle();
                 } else {
-                    uint8_t display_tmp[4] = {0b00000000, 0b00000000, 0b00000000, 0b00000000};
-                    set_module_sseg_raw(display_tmp);
+                    play_clip_wav(MOUNT_POINT "/partdone.wav", true, false, 0, 0);
+                    clear_module_sseg();
                 }
             } else {
                 strike_time = xTaskGetTickCount();
diff --git a/main/steps/step3.cpp b/main/steps/step3.cpp
index 438969c..08b476b 100644
--- a/main/steps/step3.cpp
+++ b/main/steps/step3.cpp
@@ -80,7 +80,7 @@ void step3(void) {
         // tone = 2;
         while (get_button_pressed(nullptr)) vTaskDelay(pdMS_TO_TICKS(10));
 
-        play_clip_wav(MOUNT_POINT "/correct.wav", true, false, 3, 0);
+        play_clip_wav(MOUNT_POINT "/ready.wav", true, false, 3, 0);
         play_clip_wav(TONE_FILES[tone], false, false, 3, 0);
         
         bool correct = false;
@@ -98,7 +98,11 @@ void step3(void) {
         if (correct) {
             times++;
             clean_bomb();
-            play_clip_wav(MOUNT_POINT "/correct.wav", true, false, 3, 0);
+            if (times < TIMES_TO_COMPLETE) {
+                play_clip_wav(MOUNT_POINT "/part-done.wav", true, false, 3, 0);
+            } else {
+                play_clip_wav(MOUNT_POINT "/step-done.wav", true, false, 3, 0);
+            }
         } else {
             vTaskDelay(pdMS_TO_TICKS(1500));
         }
diff --git a/main/steps/step4.cpp b/main/steps/step4.cpp
index e96401b..a0c8740 100644
--- a/main/steps/step4.cpp
+++ b/main/steps/step4.cpp
@@ -23,8 +23,7 @@ static const void* BACKGROUND_SRC = (void*)"A:" MOUNT_POINT "/bg.bin";
 // LV_IMG_DECLARE(background);
 // static const void* BACKGROUND_SRC = (void*)&background;
 
-static QueueHandle_t stop_music;
-static bool playing_music = true;
+#define MUSIC_FILE MOUNT_POINT "/piano.wav"
 
 static const char* PIECE_IMG_SRC[] = {
     NULL,
@@ -162,16 +161,15 @@ static void init_screen() {
     
     xSemaphoreGive(xGuiSemaphore);
 
-    play_clip_wav(MOUNT_POINT "/tetris.wav", true, false, 3, 0);
+    play_clip_wav(MUSIC_FILE, true, true, 4, 0);
 }
 
 static void deinit_screen() {
     while (xSemaphoreTake(xGuiSemaphore, portMAX_DELAY) == pdFALSE) vTaskDelay(pdMS_TO_TICKS(10));
-    
     lv_obj_clean(lv_scr_act());
     xSemaphoreGive(xGuiSemaphore);
 
-    if (!stop_clip(MOUNT_POINT "/tetris.wav", pdMS_TO_TICKS(1000))) {
+    if (!stop_clip(MUSIC_FILE, pdMS_TO_TICKS(1000))) {
         ESP_LOGW(TAG, "Can't stop, addicted to the shindig.");
     }
 }
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diff --git a/resources/piano.wav b/resources/piano.wav
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