Which expansions would fit me?

Put Ice (internal Maschine reverb fx) on any sound and they will ALL sound in an icy style 😂

In facts, checking now, I see Spitfire Audio is very often quoted with the name of Björk by their side, and some of their instruments have been done in collaboration with Alex Epton (producer and composer for Björk).

Here is why their instruments remind me so much of her music ☺️

This doesn’t mean you can’t add also ALL the other VSTs from other companies that are not NKS.

You can, with just a slight difference on how you load them. As the ones from Spitfire Audio (take a listen at them. Believe me, you’ll like them even more than Music Boxes if you are after that kind of sound. This for example is how their music box sounds (2 demos: the audio one and then the video where you can also see how the plug-in easily work) https://labs.spitfireaudio.com/music-box . Also the Bell Swarm instrument could be up your sleeves with the search of “icy” sounds https://labs.spitfireaudio.com/bell-swarm. But really…all of them☺️ ).

Non NKS Instruments will be loaded through the drop down menu in Sound, but they will be available anyway inside Maschine (just be sure to be at the sound level, not group or master). And this is where you will also add fxs to an instrument)

In the case of Labs series, they have a wrapper (a single VST containing all their instruments). Once you load it, inside of it you can load the instrument you want to use. And then you can play it with Maschine exactly how you would play anything else (with the pads in keyboard mode, scales, chords,…)