I'm currently playing with a very accomplished, tasty drummer. However, occasionally, he just starts songs with a tempo that's off the mark. What's out there so he can program in tempos, in set list sequence, where he can get a quick visual pulse for starting songs? It needs to be geared toward live performance, where you hit a key/button to advance or backup so its pretty seamless and quick. Thanks for any replies.
Have another band member count off the songs? Some tuners have built-in visual metronomes. Check out the Snark.