Hello Sascha. I'm the developer of an adult visual novel. I've already buy and I'm using some music of Frank Schroter, but I prefer to ask to the artist first if the licence I buy here cover the use or the music in an adult (with some lewd / porn elements) game. I've see that in the licence for Frank, there is something that say for obscene / pornographic projects, it's not ok...
Thanks a lot!