Drum Tutorials › Clave and Cascara Patterns for the Drum Set Image 1 of 3 Image 2 of 3 Image 3 of 3 Clave and Cascara Patterns for the Drum Set £2.99 This 14 page tutorial contains an explanation of the Clave in its different forms. Add To Cart Added! This 14 page tutorial contains an explanation of the Clave in its different forms.