Not only does the name end in "O-Tron" but Scale-O-Tron has a Jam-O-Tronic feature. Hyphen-tastic.

At its heart, Scale-O-Tron is a 4 channel quantizer, taking incoming voltages and forcing them to a set musical scale. Most quantizers offer you a few dozen scales but Scale-O-Tron's library contains a massive 288 different scales, organised into 9 categories. All the usual scales are there and some less common stuff like Melakarta Raga and Messiaen Modes. The current scale and root note are shown on a mini keyboard.

The 4 channels all follow the chosen scale and can process mono voltages, poly voltages or both at the same time. The octave for each channel can be adjusted independently. By default each channel behaves as a normal quantizer, moving any incoming note CV to the nearest note in the chosen scale. But each channel can be switched into Jam-O-Matic mode. This makes it easy to jam along in scale using only the white keys on keyboard. Notes in the chosen scale are laid out across the white keys, with no duplicate notes or gaps so you can merrily bash away in scale. It's a lot of fun.

If 4 channels are not enough there is a Scale-Link feature where you can connect several Scale-O-Trons together with one of them acting as master. Any scale changes are automatically reflected on the slave modules.

288 scales, 4 channels, Scale-Link and Jam-O-Matic. That's Scale-O-Tron.