Here is why this feature is significant:
: Allows for tuning acoustic instruments without needing a cable. korg at2
| Piano Type | Compatibility | |------------|----------------| | Upright (standard action) | ✅ Works with most (requires 45-55 mm from hammer center pin to backcheck wire) | | Grand (standard action) | ✅ Works with most (requires specific under-keyboard clearance) | | Spinet / drop-action uprights | ❌ Usually incompatible (internal geometry too different) | | Player pianos / silent-ready pianos | ⚠️ May conflict with existing systems | Here is why this feature is significant: :