Just click a key to play its note! Change the settings, and then update them with the space bar. The unique effect is: the note will continue playing until you release your mouse -- unique to other piano projects, which typically play the note for a set duration regardless of the time that the mouse is down.
Credit to @Naccho and their project here: https://scratch.mit.edu/projects/91376266/ which made me reconsider the possibility of this effect's existence. @Naccho invented a clever workaround involving the underused "stop all sounds block" combined with "play note X for 16 beats," to create the illusion of different length notes. I've never seen another Scratcher do this, not even the really famous ones (ie to be really good at programming, sometimes you need to have cleverness not just knowledge). I didn't copy @Naccho's script, I just simplified it and made it the theme of this project. If you wish to create a MIDI, visit the link above right away~!
