With regard to the above question, here is our answer: 1. It can not change to the momentary switch, otherwise it can play normally only when the button is pressed. 2. The photosensor can be replaced with a button.

I have a question that I hope you can answer, is it possible to replace the button with a momentary switch or just an on off switch so that it only plays when the switch is on. Also I was thinking that I could replace the light sensor on the light activated one with an on off switch but I dont know if that would fry the circuit.