A soundfont is a file containing recorded audio samples of musical instruments or synthesized sounds used for digital music creation. It stores sounds that software synthesizers or samplers load to reproduce realistic instruments, such as pianos, guitars, drums, or electronic tones. Musicians and producers use soundfonts to make music on computers without needing physical instruments. Each soundfont includes samples organized into presets, helping software recognize notes and dynamics when creating audio. Users commonly load soundfonts into audio programs or synthesizers to compose, arrange, and playback music. Popular formats like SF2 or SFZ allow easy sharing and consistent playback across various music applications and digital audio workstations.