diff --git a/src/ch/hevs/isc/slopify_v2/Album.scala b/src/ch/hevs/isc/slopify_v2/Album.scala
new file mode 100644
index 0000000..1ba3b5f
--- /dev/null
+++ b/src/ch/hevs/isc/slopify_v2/Album.scala
@@ -0,0 +1,7 @@
+package ch.hevs.isc.slopify_v2
+
+import scala.collection.mutable.ArrayBuffer
+
+class Album(val name: String) {
+  private var songs: ArrayBuffer[Song] = new ArrayBuffer()
+}
diff --git a/src/ch/hevs/isc/slopify_v2/Artist.scala b/src/ch/hevs/isc/slopify_v2/Artist.scala
new file mode 100644
index 0000000..eeedd64
--- /dev/null
+++ b/src/ch/hevs/isc/slopify_v2/Artist.scala
@@ -0,0 +1,7 @@
+package ch.hevs.isc.slopify_v2
+
+import scala.collection.mutable.ArrayBuffer
+
+class Artist(val name: String) {
+  private var albums: ArrayBuffer[Album] = new ArrayBuffer()
+}
diff --git a/src/ch/hevs/isc/slopify_v2/DataBase.scala b/src/ch/hevs/isc/slopify_v2/DataBase.scala
new file mode 100644
index 0000000..c1214a1
--- /dev/null
+++ b/src/ch/hevs/isc/slopify_v2/DataBase.scala
@@ -0,0 +1,7 @@
+package ch.hevs.isc.slopify_v2
+
+import scala.collection.mutable.ArrayBuffer
+
+class DataBase {
+  private var artists: ArrayBuffer[Artist] = new ArrayBuffer()
+}
diff --git a/src/ch/hevs/isc/slopify_v2/Song.scala b/src/ch/hevs/isc/slopify_v2/Song.scala
new file mode 100644
index 0000000..e16241a
--- /dev/null
+++ b/src/ch/hevs/isc/slopify_v2/Song.scala
@@ -0,0 +1,5 @@
+package ch.hevs.isc.slopify_v2
+
+class Song(val title: String, val number: Int) {
+
+}