RPM, or "Revolutions Per Minute," in music refers to the speed at which a record spins on a turntable. This measurement is crucial for vinyl records, as it determines how the audio is played back. Common RPM settings for records include 33 1/3, 45, and 78 RPM, with each speed affecting the sound quality and playback duration. The RPM setting influences the pitch and tempo of the music. For instance, a record played at 45 RPM typically has a higher pitch and faster tempo compared to the same record played at 33 1/3 RPM. Understanding RPM is essential for DJs and audiophiles to ensure optimal sound reproduction.