Question for a school project.

Hello! full disclosure I am very new and ignorant about creating for music programming but I thought I might be able to get some help here.

I want to create an application that uses an external trackpad to generate sound. I wanted the x axis to generate pitch and the y axis to alter the waveforms.

does anyone have any resources that I can look into and study to make this happen. I have a class assignment to create an instrument that fills a hole in conventional instruments and I thought this would be a cool jumping off point if at all possible.