This is not the worst in Arturia Spark dude. What about User experience? My gosh... this is the worst application I've ever used. I'm here now because I've just lost a project and you know how? Didn't saved it and accidentaly switched to another one, so, no warning AT ALL about "Do you want to save before?" I mean, this is an elementary basic user experience function and I don't understand how this could be possible to miss in 2020 era. I totally regreat my purchase (150 €) for this constantly incomplete Drum Machine. The emulation is great, but this is the only good point. Not to mention the bugs showing up every time. This is the last Arturia product I've buyed. Very disappointed!