Syntorial (syntorial.com/primer/) 見る感じ、patchを組むように自分の好きなように組み立てられるシンセなのではないだろうか。

Primer is a synth built for learning. Included as part of Syntorial (the award-winning synthesizer training app), it contains the most common controls found on most subtractive/analogue synths, allowing for a wide variety of patches and sounds, while presenting a simple and easy-to-understand interface and layout.