Initial Release!

Features:

• Pan Flute & Harmonica play major and minor chords respectively
• Valley Spirits "sing backup" with a 4-chord progression - majors apply positives to players, minors apply negatives to hostiles.
• Preview HUD for selected chord, including the effect when sneaking
• Left-Click for instant chord, Right-Click for a single note, or hold right for the AoE effect "power chord"
• Harmonica plays chords faster, but takes longer to cool down.
• Completely component driven, for both instruments and "key" items.

Changelog: https://github.com/hestimae/powerchord/releases/tag/v0.1.0