I have gone back through my collection of Nat King Cole CDs and LPs this week. I concur After Midnight is really good. I assume by no strings you mean no violins because After Midnight has a string bass playing in the back ground. For Christmas time Nats The Christmas Song is also very good. I also have Unforgettable, Collectors Series, Lush Life, Vol 1 and Ramblin Rose. They all have strings but I also like Ramblin Rose on LP in spite of strings.