I´m looking for a program which plays samples on a keystroke.
Multiple samples to choose from which will play with a keystroke for my summerparty to live things up.

You can simply use the Play command that comes along with MorphOS and add a keyboard shortcut to Ambient via keyboard settings with a command like this to play a sample:

Code:

Ambient_Play_Sample_20250609.png

Or if you want something fancier, it shouldn't be too hard to make a simple program, which could have an editable list of samples in a window with definable hotkeys for each sample, or something like that. I could take a look if there isn't a similar program available and you would like the idea...