Ketamine does not treat music so well. Expect a narrowing of your auditory bandwidth. Music will sound neat but not correct and not transcending. You will selectively lose frequencies. Use mellow music with a psychedelic flavor, and keep the volume less than loud because your perception of overall volume will increase.
Visual hallucinations are most notable in low light.
Touch is exceptional. Smells and tastes will be nulled. Do not expect to talk, although you may. Expect general reflection but not exceptional emotionality. Due to its anaesthetic nature, K can produce wide ranging effects from different amounts.