The main objective of Smacky is to provide basic features for writing music scores and emulating them on a speaker. All scores are described in a simple XML file like the following: <?xml version="1.0" encoding="UTF-8"?> <score tempo="150" name="My music score"> <block loops="2"> <block> <note value="C,4" /> <note value="D,4" /> <note value="E,4" /> <note value="F,4" /> <note value="G,4" /> <note value="A,4" /> <note value="B,4" /> </block> <pause duration="3.0" /> <block> <note value="B,5" /> <note value="A,5" /> <note value="G,5" /> <note value="F,5" /> <note value="E,5" /> <note value="D,5" /> <note value="C,5" /> </block> <pause duration="3.0" /> </block> </score> The syntax is relatively intuitive for beginners. This file format was almost chosen to ease the reading/writing of music scores for musicians and the sharing between users.