This month at Experimental Spinning, we were playing with plying with a Bollywood theme. I brought some recycled sari silk yarns that I had purchased in San Remo. These provided the inspiration for colour combinations.
I'm not sure I quite achieved a real Bollywood effect, but they're very bold yarns.
There was some discussion about cable and crepe yarns. My take on this is that if all singles are plyed together at the same time, then it's a cable yarn. The yellow is my cable yarn. If the yarn is built up with successive plyings then it's a crepe yarn. The crimson yarn. They give very different effects. I think I might follow up this line with some research. In the name of accurately and consistently describing yarns, it might be worth it.