arduino project 7

I was doing the 7th project and tried to hook up a 5th button with a 1m ohm resistor and coded it correctly but the piezo was making a weird sound even when I changed the note. The current was 695 I think

You will get help faster if you provide links to the project, post the code and a photo of your wiring. As is, we have to find the project and guess at your wiring and code. The less work and guessing that we have to do the better.

Cross posted and answered in Project Guidance.