Isso provavelmente é " Tangents " de Greg Bear:
This story was written by Greg Bear, and was first published in Omni in January 1986. Pal Tremont, a Korean boy who likes classical music, is adopted by an American family and comes into the life of Peter Tuthy and writer Lauren Davies. Peter is a mathematician and computer hacker (seemingly based in part on Alan Turing) who is very interested in 4-dimensional space (4-D). Lauren wants Pal to help her with her writings, but Pal is more useful to Peter as he can easily visualize 4-D space. Pal is able to see a whole new world, inhabited by 4-D beings and is even able to play 4-D music for them. The beings eventually make contact and take Pal and Peter into their own world.
De acordo com o ISFDB , ganhou alguns dos "melhores" prêmios, incluindo um de 1987 em Hugo , uma Nebula de 1987 e uma Seiun de 1994 e foi incluída em algumas das coleções "Best of", incluindo Nebula Awards 22: Opções da SFWA para a Melhor Ficção Científica & Fantasia 1986 .