There's some free VST's that are supposed to be good, and reaper, which isn't really free, but the trial period is at your discretion. Before you start with a

There's some free VST's that are supposed to be good, and reaper, which isn't really free, but the trial period is at your discretion. Before you start with a DAW, read lots of reviews, watch youtube walkthrus and ask around what your friends use, learning a DAW is a significant chunk of time. Some free AU's may work with garage band also: https://ask.audio/articles/8-awesome-free-audio-plug-in-synths-for-mac-musicians https://ask.audio/articles/8-awesome-free-audio-plug-in-synt... http://blog.landr.com/the-7-best-free-synth-vst-plugins/ http://blog.landr.com/the-7-best-free-synth-vst-plugins/ http://www.extremraym.com/en/reaper-5-review/ http://www.extremraym.com/en/reaper-5-review/