inputs.text: meets piano teachers requirehements - piano teacher replacing old electromechanical metronome hit floor one many times quaint adequate somewhat antique watching youtube reviews see hear various available replacements two yamaha hockey puck korg come competent companies decision simplicity yamaha function korg korg meeting needs simple wood block sound approximates older mechanical metronomes sounds may good instruments like wood block variable volume plus didnt plenty volume available light doesnt really help since students looking music not metronome finite steps plus though years mechanical devices met needs havent used various bar timings yet might help student not hearing describe beat requirement black perfect color since dont funny colored pianos 4 black c3 hammond wood finish lets not digress guess proof pudding falls wood floor second time rate 5 survives