I thought I'd share my latest Teensy-based project - a dedicated USB-MIDI controller for the Turnado software plugin - a project I've entered into the 2018 Hackaday Prize musical instrument challenge. It uses a Teensy 3.6 (the performance of a 3.2 would probably have been enough for this project, but I used a 3.6 for the large amount of IO) and a ILI9341 TFT LCD.

Project page: https://hackaday.io/project/160792-t...idi-controller
GitHub repository: https://github.com/liamlacey/Turnado...IDI-Controller