Caustic Song file (optional):
Not sure why but there don't seem to be many Caustic producers making house music so I thought I'd have a stab at it myself 
That darting, walking bass is the Organ synth and then there's a couple of PCM synths adding some light / shade with Pizz Strings and a filtered 12 String guitar preset.
I used some vocal samples from a free pack to add some colour.
Given that the track was started and finished in less than 24 hours I think it's pretty cohesive and a little bit tasty!
..and I'm technically correct too - House is not a 4 letter word 