This is my love language.
I’ve loved It since the days of making mix CDs, so I typically keep them to 18-20 songs. Somewhere around an hour. Playlists can be infinite now, but adding self-imposed limitations forces you to make choices and be intentional. It makes for better playlists.
Sometimes I make playlists for people based around a theme (like Fall) but other times it’s a random word or word phrase like “retro futurism.” The goal is always to find those gems that people will hear for the first time and go, “Oh man, I love that song.”