A chord is a group of notes played together at the same time. In music, chords create harmony and add depth to a melody. For example, when you strum a guitar or play a piano, you can press multiple keys or strings to form a chord. Common types of chords include major, minor, and seventh chords, each giving a different feeling to the music. Chords are essential in many music genres, from classical to rock. They help musicians express emotions and tell stories through their songs. Learning to play chords is a fundamental skill for anyone who wants to make music, whether as a hobby or professionally.