I have that one - my recommendation is don’t use MPC essentials unless you especially want this for drums - if you have a DAW you don’t need it. The free synths are really good - you get VIP which is great I think has almost identical sounds to AIR xpand2 (look out[size=78%] Pompeyjazz!)[/size]
You also get Sonivox Wobble which I’m not sure is really your style but has some really interesting pads especially.
There are a few important set up things - not sure what DAW you have but you have to select the controller as an input, and you need to set the track to midi input, make sure input monitoring is switched on and ensure you have an instrument set up on the track!
The keys are quite stiff but you should get used to them quickly.
Will be fun and you’ll have all known instruments (more whether there’s a bodhran!)