Great initiative and great idea! What I would love to see someone do, and this includes Joe Hanley as he develops more tutorials inside the app, is to begin including the growing number of really excellent iOS synths. I personally am still struggling to stay committed to syntorial, so it won’t be me. Obviously some iOS synths emulate existing hardware: Moog Model D, for example. But there are many excellent iOS synths (according to the opinions of influencers in the iOS music sphere) that I personally would love to see how my limited syntorial ‘ear’ applies to. Thanks!