M.Graveyard/dai is a piano collection of songs from Umineko and Higurashi released in 2009. A revised edition was released later, and I couldn't find it anywhere online. It has a few songs not in the 2009 version: Misty Pithos, Soar, In the Sun - destructive, Blue Butterfly, Tomorrow, thanks for all people, Final Answer, Rebirth, and Alive. It was a little expensive, so I wanted to upload it here.
(Full PDF)
Song List:
| being | midi | video | |
| dir | midi | video | |
| Thank You for Being Born - Solo | midi | video | |
| Thank You for Being Born - Vocals | midi | video | |
| Thanks | midi | video | |
| you - Solo | midi | video | |
| you - Vocals | midi | video | |
| Answer | midi | video | |
| hope | midi | video | |
| happiness of marionette | midi | video | |
| Sora no Mukou - Solo | midi | video | |
| Sora no Mukou - Vocals | midi | video | |
| two. alone. | midi | video | |
| hello | midi | video | |
| Wings | midi | video | |
| mortal stampede | midi | video | |
| Dance of the Moon Rabbits | midi | video | |
| Confession | midi | video | |
| Birth and Death | midi | video | |
| you-destructive | midi | video | |
| Sunny Spot (hidamari) | midi | video | |
| Endless Nine | midi | video | |
| Iru | midi | video | |
| Sakutarou's Adventure | midi | video | |
| Misty Pithos OP - Solo | midi | video | |
| Misty Pithos OP - Vocals | midi | video | |
| Soar | midi | video | |
| Sunny Spot (hidamari) - destructive | midi | video | |
| Blue Butterfly | midi | video | |
| Tomorrow | midi | video | |
| thanks for all people | midi | video | |
| Final Answer | midi | video | |
| Rebirth | midi | video | |
| Alive | midi | video |