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+
+## SuperCollider Racket library
+
+
+## Goal
+I planned on writing a client for the SuperCollider (SC) music synthesis server for use in the Music Programming section of CSC123. Using the interface to SuperCollider, students will have access to real-time synthesis techniques.
+
+## First hope
+In the first quarter, after examining implementations in various languages, I set out on creating a new implementation in Racket from scratch. Quickly, however, it appeared that two quarters is not enough time, so I looked into porting the scheme implementation of a supercollider client, rsc3, to Racket.
+
+### The Porting process
+
+I first tried rsc3 in a scheme interpreter, including ikarus and DrRacket's r6rs mode (#lang r6rs). rsc3 ran with very little modification (one library funciton name was wrong). However, rsc3 could not be installed as a Racket package, due to a conflict of the way scheme and racket handle libraries. 
+Installing rsc3 as a package is an important aspect since that is how students will install rsc3.
+
+What I did is instead of using "#lang r6rs", which makes racket behave like a scheme interpreter confirming to the r6rs scheme standard, I used "#lang racket" and imported the rnrs library that has scheme functions in a racket environment. This way I could use Racket's provide and package functionality works.
+
+The process of porting was relatively straightforward. I compiled a file, looked for errors, and fixed them. Some defined utility functions were not necessary because racket had native implementations.
+
+### Challenges when porting
+One tricky part was a difference in the list representations between r6rs scheme and Racket. Racket uses mutable pairs to construct lists, while scheme uses immutable pairs. This makes it so that a list created in Racket cannot be used in a scheme function that accepts a list. One way around this is to construct lists using mcons in Racket then pass it to a scheme function.
+
+
+
+## Features added
+
+It would be hard for first year students to use rsc3 directly. 
+
+
+## Outline
+
+- scratch & porting rsc3
+  - how I started
+  - challenges
+
+- features
+  - instruments
+  - sliders
+  - effect chaining
+
+- cross platform
+
+