From Orange Software:
The Orange Metronome is more than a digital pendulum. It is a complex rhythm generator and trainer with which you can learn new beat patterns and develop your sense of timing. It is also a simple percussive accompaniment device.Popular sample rhythms include Jazz, Rock, Simple 4:4. Use visual beat highlighting as well as audio. Tap any tempo you like with the mouse. Use any combination of sound output formats: MIDI--for musical accompaniment. Wave--percussion sounds are included. Voice--'Aldo' will count your rhythms aloud emphasizing accent beats.