Hello.
It's interesting question. I guess, that was some unscheduled test or simply somebody has forgotten to switch SW transmitter off. Anyway, the mentioned PX format matches their program schedule, posted on official BBS web-site. By the way, starting from 0000 UTC, usual BBS program (including traditional music and monks' chants) has started after pop music concert on 6035 kHz. However, no any signal on 6035 kHz right now. I will post audio recording of the broadcast on my website later.