Hello, I'm fairly new to electronics, and this isn't a circuitry question, more about components.
Just for fun and practice I'm building a mini electronic "guitar". I'm using a circuit I found before, I believe it was a variation of a Darlington Pair, I could be wrong on the name, but it is two transistors connected in a fashion that amplifies, with two bare wires that, when touched with skin, together, complete a circuit.
Mine will have 5 of these gaps for your fingers, and I don't remember very well but I believe I can just use one pair of transistors.
I need a piezo, I believe, I'm not even sure if that's what I need, to create 5 different guitar pitches. It/they should be able to run off of a 9v battery.
Is this what I need?
Can I do it with one or do I need 5 separate?
How do I use these?
Thanks!