A guitar synthesizer is like a magic box that can make your guitar sound like different instruments, such as a piano or trumpet. It works by connecting your guitar to a special synthesizer device that can then change the sound of your guitar.
Imagine you have a toy car that can turn into different types of cars with the press of a button. That's what a guitar synthesizer does, but instead of cars, it turns your guitar into different instruments.
When you play your guitar, the sounds you make travel through a cable into the synthesizer device. The synthesizer then changes the sounds by using special computer technology. It can even add effects, like echo or distortion, to make your guitar sound even cooler.
The synthesizer can also change the pitch of your guitar, so you can play notes that are higher or lower than usual. This means you can play songs that were written for different instruments, like a saxophone or violin, and still sound like you're playing them on a guitar.
In short, a guitar synthesizer lets you make all sorts of different sounds with your guitar, making it possible to play all kinds of music.