Two sequencers. 8CV+Gate outputs are standard for most sequencers. So you may need more than one. It's nice if you can get everything that you need in one box. But if you're dealing with percussion, you'll probably want a CV+Gate sequencer and one that does nothing but triggers. Higher end sequencers can be synced together as well as most mid-tier sequencers.

If you find yourself with a LOT of tracks, you may find it better to use an external sequencer and possibly a computer sequencer. Expert Sleepers makes FH2 plus lots of expanders for it. So if you're needing tons of outputs in a smaller space, it may be the only viable solution. There are other MIDI to CV converters out there too. But the FH2 goes directly from USB to CV.