Show HN: Perfect Bluetooth MIDI for Windows

Erwin developed a free open-source utility to enable Bluetooth LE MIDI keyboards to work with Windows MIDI Services, solving compatibility issues with DAWs and Web MIDI apps. The tool addresses Windows' limited BLE-MIDI exposure via WinRT and detects the correct MIDI channel for devices like the Roland FP-90X, which defaults to receiving on channel 4 instead of 1.