Add sonic pi code

Author: Malwine

devils_staircase.rb

@@ -0,0 +1,33 @@
+# Welcome to Sonic Pi v2.0
+#volume, octave(frequency, finger/hand
+amount_fingers = 5
+
+define :finger do |n|
+  in_thread do
+  t = 0
+    loop do
+      puts "finger is #{n}"
+      if n == 0
+        audio_level = t/11.0
+      elsif n == amount_fingers-1
+        audio_level = 1.0-(t/11.0)
+      else
+      audio_level = 1
+      end
+      audio_level
+      play 12 * n + 50 + t, amp: audio_level
+      sleep 0.5
+      if t < 11
+        t = t + 1
+      else
+        t = 0
+      end
+      puts t
+      
+    end
+  end
+end
+
+amount_fingers.times do |n|
+  finger(n)
+end