When play is pressed, rendering won't load

[d3stiny]

Today I was messing a bit with UTAU since its pretty much my first time using it, I created a jumble of music and I wanted to see how it would sound. I pressed play, and after 5 minutes, it still was rendering. When I try to press 'Stop', my computer (Mac) freezes up and the only way to get out is to press force quit. ​

 

[Kiyoteru]

UTAU can only play one note at a time. Please delete the overlapping notes.