Hydrasynth has an interesting approach. The mod matrix is a graphical pushbutton array which when selected register on one of 8 tiny secondary displays, each with a devoted knob and displayed parameter depending on the mode selected. Once you get used to the workflow the ease of selecting and modifying parameters is brilliant.
The sequential take 5 also has well thought out controls but tends more toward the "guess what I'm set at" category.
The controls are effective enough though, when compared to the Prophet Rev 2. Honest to god, too many parameters and too much disconnect trying to match up the knob with what shows up on the teeny display when you're looking to modify a sound. Even. though the workflow between the two is virtually identical, I simply find the available prophet parameters overwhelming.
The Deepmind though, has rapidly become my favorite parametric synthesizer. The cheezy little sliders tell you nothing but the slightest touch and they are lightning quick and howl like a flock of geese in a burning meth lab.

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