a trumpeter clock can be found in several different variations. the most common examples are known to collectors as a "blowers" or "german buglers". these examples use a modified cuckoo type movement that produces a simple trumpet like call. instead of using a wooden cuckoo pipe, these examples have small reed/horn assemblies. this varies from the large trumpeter clocks that use a large bellows system that feeds air into a wind chest. a pinned music wheel controls a series of valves to reproduce a complex musical tune.