My SLI husband is very sensory. He'd always light candles or put on a DVD of a fireplace, or even of a beach. Many times, his way of showing romance and love is by cleaning and organizing the house for me. Although last year at Christmas, he carried a couch downstairs to our basement, lit a fire in our wood burning stove, added a rug, some Christmas music, and a table with two glasses of wine. That was by far the most romantic and thoughtful thing he's done for me.
My husband never sings either, but we spent my last birthday together alone at my parents' lake house. Right before bed, he realized that nobody had sang happy birthday to me that day. So he hugged me and slowly rocked in place, and sang Happy Birthday in my ear. He's getting so much better at this romance thing
I know that my LSE mother in law will cook a nice meal, make a cake from scratch, set the dinner table in a nice way, and buy gifts for her husband. She'll offer to make his favorite food and will go all out with appetizers and everything.
Hope this His helps a little!