- Playing instruments lowers boredom and unhappiness.
- Playing instruments has a higher calorie burn.
- Added a new song to the library.

Rewrote the playback to handle note duration better (improves short/long notes).

Regenerated sounds with a relative volume closer to vanilla sounds.

- Improved distribution logic.

Improved UI scaling with different resolutions.

- B41: back-compat for electric bass and guitars.

Added Xylophones to the distribution.