Vinyl extends Java Streams with relational operations. I wanted to try a different approach than what I'd found in the wild, to get at a solution that feels good. Vinyl offers type-safe access without type bloat. It offers an extremely expressive API without scores of opinionated methods to learn. It integrates with the Streams we already have, and plays nice with parallelism. If we can do it in SQL, we should be able to do it in Java.