I am a big fan of Gospel Musicians; Jamal is a great musician, teacher, and yes even a developer. I purchased his Pure Synth about a year ago to run on my MacBook live rig and it is a very high performing rompler of sorts that packs the best of vintage keyboards and classic synths. This bundle gives you all of the expansion modules (which Gospel Musicians unlocked for me for the review). I plan on doing a live stream soon to run through it. Here are some more details. https://vstbu