It will be sold during the MIDI festival which is presumably in May (was postponed from beginning of May)
The unfortunate thing for me (and most people here) is that there is no opportunity to get it.
Not only "2024 Dawuyi Midi Music Festival (May 2-4)" but also "Taizhou Feilong Lake Midi Music Festival (Apr 12-14)" was postponed due to force majeure.
It seems something wrong. I doubt it will be rescheduled to be held within May.