to my knowledge, this is the first keysounded quaver map (excluding converts)
IMPORTANT: this latter half of this map is keysounded but the keysounds are not in the .qp file when you download it because Quaver is funky. In addition to downloading the map, please download the keysounds from here https://mega.nz/file/qax2QKrS#U2-amErnxzaRmCpv_tOpO8RQKFz9Xpu7gSOnzLmzVWI and throw the files straight into your song folder. Make sure to restart Quaver after extracting the files or else they will NOT WORK.
To get the most out of this map, I recommend enabling keysounds, disabling hitsounds, and putting your music volume and effect volume to the same level.