A synthesizer, often referred to as a synth, is an electronic musical instrument that generates audio signals. It can create a wide range of sounds by manipulating waveforms, which are the basic building blocks of sound. Synthesizers can produce everything from simple tones to complex textures, making them popular in various music genres, including electronic, pop, and rock. Synthesizers can be categorized into different types, such as analog, digital, and modular synthesizers. Each type uses different methods to create sound. Many synthesizers also feature keyboards, knobs, and buttons that allow musicians to control and shape the sounds they produce, offering endless creative possibilities.