Improve implementation (sound and custom parameters) for 'Cowbell' (Midi note 56)

[lilyvanoekel]

Feature Description

Please help improve 56 Cowbell, no guidance is available on the sound, suggestions are welcome, up to 3 parameters can be defined.

For guidance, please refer to the Improving a Sound guide.

[sejal-Kamble18]

please assign me this issue under hacktoberfest i would like to work on it