There are several possible techniques, but all have limited effectiveness, as follows:
- Hitting the lower strings with the palm of the hand produces a gong-like sound.
- Running fingernails laterally along string makes a (quiet) howling squeak.
- Threading paper through the strings is possible, although indistinguishable from the same effect done on a piano.
- Playing near the mechanism involves standing up, and the sound is not that unusual.