diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..2f905bd
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "sounds"]
+	path = sounds
+	url = git@github.com:Hri7566/piano-sounds
diff --git a/favicon.ico b/favicon.ico
new file mode 100644
index 0000000..0c489bc
Binary files /dev/null and b/favicon.ico differ