I don't mean the solo mode. I want to use my small audio interface or the internal sound card in parallel with my midi controller as well as with other applications such as YouTube. Specifically, I want to watch and listen to piano tutorials on YouTube, for example, and practice along on the controller at the same time. Cakewalk and certainly other DAWs block the sound of such applications or require a multiclient-capable card. Now I read somewhere that it might be possible in Cakewalk by switching off an exclusive mode.