Tiger looks a little bit uncertain, but...well, Greg is just hitting a lunchbox with a marker. It's not like he'll be able to make fun of him for anything he does, right? Anything he does on this phone thing is going to be better than that, so there's no way he can make fun of him for this, right?

He thinks so.

Tiger listens to the rhythm for a few bars, and then starts trying to tap out a slow pattern on the tiny phone keyboard. After he solos something he likes, he saves that loop and sets it to repeat, and then starts trying something a little bit more melodic over the top.