diff --git a/moi.py b/moi.py
new file mode 100644
index 0000000..c99e937
--- /dev/null
+++ b/moi.py
@@ -0,0 +1,76 @@
+import time
+from grove.gpio import GPIO
+import RPi.GPIO as rGPIO
+
+
+
+led = GPIO(5, GPIO.OUT)
+button = GPIO(6, GPIO.IN)
+
+# create PWM instance
+pwmPin = 12
+rGPIO.setmode(rGPIO.BCM)
+rGPIO.setup(pwmPin, rGPIO.OUT)
+pwm = rGPIO.PWM(pwmPin, 10)
+
+
+pwm.start(0) 
+# 1000 Hz sound
+pwm.ChangeFrequency(1000)
+pwm.ChangeDutyCycle(100)
+
+def setFreq(freq_hz: float):
+    """
+    Replace this with your actual frequency-setting function.
+    freq_hz = 0 should silence the output.
+    """
+    print(freq_hz)
+    pwm.ChangeFrequency(freq_hz)
+    pass
+
+
+# --- Timing ---
+BPM = 100
+BEAT = 60 / BPM  # seconds per quarter note
+
+
+# --- Note frequencies (Hz) ---
+# --- Note frequencies (Hz) ---
+NOTES = {
+    "C4": 261.63,
+    "D4": 293.66,
+    "E4": 329.63,
+    "F4": 349.23,
+    "G4": 392.00,
+    "A4": 440.00,
+    "B4": 493.88,
+    "C5": 523.25,
+    "D5": 587.33,
+    "E5": 659.25,
+    "REST": 0
+}
+
+
+# --- Melody (note, beats) ---
+# Based on the standard vocal melody of "Erika"
+MELODY = [
+    ("E4", 1), ("G4", 1), ("A4", 2),
+    ("A4", 1), ("G4", 1), ("E4", 2),
+
+    ("E4", 1), ("G4", 1), ("A4", 2),
+    ("A4", 1), ("G4", 1), ("E4", 2),
+
+    ("A4", 1), ("C5", 1), ("D5", 2),
+    ("D5", 1), ("C5", 1), ("A4", 2),
+
+    ("G4", 1), ("A4", 1), ("G4", 1), ("E4", 1),
+    ("E4", 2), ("REST", 2),
+]
+
+
+# --- Playback ---
+def play():
+    for note, beats in MELODY:
+        setFreq(NOTES[note])
+        time.sleep(beats * BEAT)
+play()
diff --git a/start.sh b/start.sh
old mode 100644
new mode 100755