Simple Piano [Working]

A Piano with working keys

Simply activate a key to play its note.
Activate a key by right clicking it (on PC). I believe on mobile one must activate the keys via the pop-up box scoff

This piano is fitted with a simulated sustain pedal which is customisable, as well as left-hand notes played via Activation Groups.
These features are locked behind an arm-wall due to thread and core issues; activating these features may cause the piano to protest and slow down its functionality, depending on how working-class your device is.
If it does, simply deactivate the offending features.

Sustain
To activate/deactivate Sustain Control, right-click the right-arm of the piano.
Notes will sustain between 0 seconds and infinity. Default is 0.5 seconds.

To increase/decrease the sustain, use Pitch controls (W & S on PC); mobile players may find it difficult fiddling with the on-screen joystick.

Left-Hand Keys
To activate the Left-Hand feature, right-click the left-arm of the piano.
The left-hand notes are activatable via Activation Groups 1-8, notes C,D,E,F,G,A,A#,B, respectively.
Unfortunately, to reduce part-count, AGs don't show up in the AG menu, so mobile players may find this feature difficult to access.

This piano is best played in 3rd person view, like this.