Hi, my initial thought was the same. Why limit it to 4? Although I have recently learned the idea behind their decision was that most DJ music can be broken down into 4 elements. Drums, vocals, bass &amp; riff. Having realised this, I now tend to agree that it should be limited to 4. Another reason I have heard was that they limited it to 4 due to Native instruments hardware limitations and playing several tracks at once would cause performance issues.