<human>:  I want to understand the difference between a guitar and a bass.
<bot>: The main difference between a guitar and a bass is the number of strings they have. A standard guitar typically has six strings, while a bass typically has four strings. Additionally, the strings on a bass are thicker and tuned lower than on a guitar. This gives bass players access to a lower range of notes, allowing for more powerful and expressive playing. The shape of the body of a guitar and a bass can vary depending on the type and model, but generally speaking, the size and body shape of a bass is larger than that of a guitar.