A bass string is a type of string used on bass instruments, such as the double bass or bass guitar. These strings are typically thicker and longer than those used on higher-pitched instruments, allowing them to produce deeper, lower frequencies. Bass strings can be made from various materials, including metal, nylon, or gut, each affecting the sound quality and playability. In a bass guitar, the standard tuning for the four strings is E1, A1, D2, and G2, which corresponds to the lowest notes played. The tension and gauge of the strings can influence the instrument's tone and feel, making it essential for musicians to choose the right strings for their playing style.