The KORG TM-50C: a set consisting of the TM-50 combo tuner/metronome that’s packaged with the convenient CM-200 contact mic – the perfect partner for your daily instrumental practice.The Korg TM series allows you to use the tuner and metronome simultaneously. Since this single unit is all you need for both pitch and rhythm training, it has become a favorite lesson tool for brass bands as well as many other types of musicians.