Piano, marimba, violin, drums and brass are all musical instruments. Piano belongs to the percussive chordophone family. A violin is a bowed stringed musical instrument. Marimba and the drums are percussion instruments. A brass falls under the category of wind instruments, while a clarinet is considered a woodwind instrument.
From your list, the following items are tools: chisel, hammer, drill and screwdriver. Chisel is a hand tool used for carving a hard material such as wood, stone, or metal. With a scissor, you normally cut paper and potentially some types of thin plastic. A hammer is a multi-purpose tool that you can use, for example, to secure objects with nails in wood, pull nails from wood and demolish objects. A drill is commonly used to drill holes or to drive screws into wood, metal, concrete and other materials. Last, a screwdriver is a mechanical hand tool that can you can use to drive screws in similar materials.