So, you know how Luma's image-to-video ai has that loop feature, where it seamlessly makes the beginning and end merge together? That would be awesome for sound effects, like a background drone/hum from machinery or fluorescent lights, field recording ambience, and would improve drum loops - which by the way, having "drum loop" in the prompt generates a seamless loop, but it does require touching up and quantizing in an editor. There are a lot of potential cases here.