Which or what type of software creates music?

I should be able to find it but I can’t, I am either looking in the wrong place or under the wrong category. Does anyone know of a music program or software that allows you to create music? I am not talking about a program that allows you to blend, mix, or filter existing music or write music by way of a piano with a MIDI interface but one where you can actually create music even if you do not know how to play an instrument. Many years ago I seen one but I can’t remember the name and I am sure they have way better stuff out there now. What have you got or have you seen?