MSP432P401R: ADC Values and Memory

Part Number:MSP432P401R

I am beginning a project where I am using the MSP432 as a sequencer in an electronic drum machine. I have already written code that successfully samples the output of a few drum circuits, via ADC, and I have a few audio samples that I would also like to integrate into the project. Currently, I am having a few issues that I would love some guidance on.

1. Where should I save the values (from the drum circuit) recorded by the ADC?
2. How/Where do I save audio samples in the MSP432 for combination with the digital voltages that I have determined via ADC?

Thank you for any assistance that anybody can provide!