Started following some tutorial on att85 usi. Downloaded example code from make avr book.

Make AVR Examples/Chapter05_Serial-IO/serialOrgan/autoPlay.py

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+## Scripting in python to drive the serial-port organ
+
+## So far, the "protocol" is simple.  
+## Python routine sends a note, waits for a return character, then sends next, etc.
+## Organ listens for notes, when it gets one sends an 'N' to say it's ready
+ 
+import serial
+
+def playString(noteString, serialPort):
+  for letter in noteString:
+    print(letter)
+    serialPort.write(letter.encode())
+    returnValue = serialPort.read(1)
+    
+if __name__ == "__main__":
+
+  import time
+  from urllib.request import urlopen
+
+  ## Need to consider alternatives for Mac / Windows
+  ## list all serial ports being used: python -m serial.tools.list_ports
+  PORT = "/dev/ttyUSB0" # Change this to the current serial port being used
+  BAUD = 9600
+
+  s = serial.Serial(PORT, BAUD)
+  s.flush()                     
+  ## flush clears the buffer so that we're starting fresh
+  ## More on serial buffers later.
+
+  ## An intentional example.  You can use this for playing music on purpose.
+  playString("f g h j k l ; ]'[", s)
+  input("Press enter for next demo\n")
+
+  ## A fun / stupid example.  You can just type stuff and see what comes out.
+  playString("hello there, this is a random string turned into 'music'", s)
+  input("Press enter for next demo\n")
+
+  ## Website no longer alive... skipping:
+  ## A really frivolous example.  Play websites!
+  ## Bonus points for first person to tweet themselves a song.
+  #print ("Downloading song data from http://serialorgansongs.jottit.com/...")
+  #import re
+  #contentFilter = re.compile(r'<p>(.*?)</p>')
+  #songSite = urlopen("http://serialorgansongs.jottit.com/").read()
+  #songText = contentFilter.findall(songSite)[0]
+  #playString(songText, s)
+ 
+  ## Or interactive
+  mySong = input("\nType in your own song: ")
+  playString(mySong, s)