Changes

An additional button needs to be mapped to circle as well but configured to deliver "light" pressure. This is done by opening the gamepad plugin configuration and choosing a rarely used key - for example, the lower shoulder button L2 - and remapping it to the circle button, and setting the sensitivity to 0.500 or thereabouts. In the game, merely use the remapped L2@circle button to deliver "light" tap/hold tunes while the regular circle button can be used normally to deliver "hard" tap/hold tunes.

Lightgun support is available in the pcxs2 emulator via a third party plugin called nuvee. His allows you to use and mouse or mouse compatible device (such as a lightgun) to play the large ps2 library of lightgun games<ref>https://lightgungamer.com/pcsx2</ref>.