|This article does not cite any references or sources. (December 2009)|
|slit drum, temple blocks, Log drums, muyu, wood block|
A jam block is a modern, hard plastic version of the more fragile wood block, and is sometimes referred to as a "clave block", "gock block" or "temple block". It is sturdy, designed for hard hitting and is becoming more and more popular with modern drummers and percussionists, due to its durability and sound.
Jam blocks are usually attached to timbales and drum kits or are used as stand alone orchestra instruments. These blocks are often used in Salsa, Cuban, and Latin American music, although some modern drummers have made use of them in rock songs. Jam Blocks are often used in the marching percussion idiom as well.
There are various colours of block, these colours usually represent the pitch and are different for each manufacturer. Many cheaper manufacturers use LP's Blue-Red classification system. Larger jam blocks have a lower pitch than smaller ones. Other variations of this instrument include the stealth jam block and the guiro jam block, a combination of the guiro and low pitch jam block, blast blocks, sambango bells and granite blocks.