Thank you all so much! I will remember to come here for any future help.

I'm pretty new to everything computer-wise. I've been trying to use music software and i don't know which version of LMMS runs on my Mac. I'm running OS El Capitan 10.11.6 on a late 2008 Macbook. All i know now is that the latest version of LMMS doesn't run on my computer. Any help is appreciated.