Below each MIDI track, you’ll find the recommended settings. Make sure to follow and apply them correctly for the best results. 

Check the notes provided with each MIDI track and apply the required transposition and key settings. Other settings can be left unchanged. 

Activate only one track based on the instrument you and your partner are using, and turn on the Hold Notes function in the settings if you are playing the Nightwind Horn or any instrument that requires sustain. 

For files dedicated only to Genshin Impact instruments, use the appropriate settings based on the filename shown above. 

Below each MIDI track, you’ll find the recommended settings. If the track key is listed as C3, set the key in the MIDI player settings to C2. The same adjustment applies to other keys. Please follow these settings carefully for the best results.

The image above shows the Key set to C2. If the track key is C3, apply the same adjustment to other keys. This is required for Heartopia MIDI files to run properly on the Genshin Impact 21-key setup and other games with similar layouts.