How do you play death rattle with a harmonica?

To play a death rattle on a harmonica, you can create a haunting sound by using a technique called "overblowing" or "overdrawing" to produce a pitch that mimics a ghostly wail. Additionally, you can use a combination of heavy breath control and tongue blocking to create a raspy, airy effect. Experiment with bending notes and adding vibrato for added eeriness, and consider playing softly to enhance the chilling atmosphere. Practice different rhythms and dynamics to perfect the unsettling sound you’re aiming for.