Which instrument consists of a keyboard with an arraignment of 23 to 77 bells?

The instrument you are referring to is likely a celesta. It features a keyboard that activates hammers striking metal plates or bells, producing a distinct, bell-like sound. The number of bells can vary, typically ranging from 23 to 77, depending on the specific model. The celesta is often used in orchestras and has a unique, ethereal quality that adds a special texture to musical compositions.