![](https://static.iono.fm/files/p155/logo_1674_20240206_131722_600.jpg)
Did Martin and Tumi just give away a big clue for their R100k secret sound?
--:--
It's clear that the sound is not anything to do with an ashtray, a coin dropping into a glass or a pinball machine. Do you think you know what the sound below is?