Can you please vote on which of these 15-second musical tracks you prefer?
 

This is a sort of scientific project I'm working on. Can you help me by voting on your preference between these two brief tracks? They're on this page:

Survey

Any responses are much appreciated. There is no wrong or right answer. Please don't forget to click "vote" to make sure it's counted! Comments are appreciated as well.

I voted the 2nd one (on the right). Only listened to each one once, but the one on the right seemed to have a wee bit more dynamism, with a few more higher notes and wider range of notes than the on on the left.

EDIT: Correction: I still like the 2nd one better, but it's more because the last half of the piece was a little more interesting, not because it necessarily had a greater range of notes. 2nd half seemed more lively than the 2nd half of the piece on the left.