Welcome to the Beat Note Community Tato Mora and thank you for creating this enhancement request!

We already have a request for cowbell and I see you've added your vote already: https://roadmap.beat-note.app/feature-requests/p/add-support-for-cowbell-percussion

For the cáscara, how should this be notated? Please provide me with what you expect the standard note head would be along with the appropriate position on the music staff. Any images you can include for reference would also be helpful.

Would you expect to notate this along with a drumset part? Or isolated, in a multi-percussion style chart?

Thank you!