Based on our record, LUMI Keys seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
This is a keyboard with light-up keys that guide you, but it might be out of the price-range for your project: https://playlumi.com/lumi-keys. Source: about 3 years ago
Flowkey - The easiest way to learn piano with your iPhone or iPad
HapticKey - Trigger haptic feedback when tapping Touch Bar
Simply Piano - Fast and fun way to learn piano
TouchBar for your old MacBook - Use Touch Bar on an iPad through USB connection
Touch Pianist - Play piano like a pro without playing piano.
Touch Bar Simulator - The macOS Touch Bar Simulator as a standalone app