Tractor Engine Startup, Idle, Revving, and Shutdown

This sound captures the robust engine of a tractor as it starts up, idles for a moment, revs up to a higher speed, and then shuts down. The deep rumble of the engine startup is followed by the steady hum of the idle state. As the engine revs up, the pitch and volume increase, conveying a sense of power and readiness. Finally, the engine winds down to silence, capturing the full lifecycle of the tractor's engine operation.