After sampling all is done using Microsampler's internal sequencer.
I'm a software developer and Microsampler gives me time off computer. Of course it would be better to use some PC sequencer but not using one is a decision I've made. Also I know that before 90's software sequencers were not commonly available and a lot of good tracks have been made with much simpler tools than MS.
I have to admit that I've bought an Amiga 600 and experimented with it as a sequencer. It's not a PC so i'm not breaking my own rule

So far I've been unsuccessful, but the Amiga's midi interface might be broken.