UNID station, possible clandestine? 5457 AM, 0445ish-0500, 22 DEC 2017

[MDK2]

There was no ID to understand and no listing of a station on fpeconsultant's b17 schedule, but I'm pretty confident that I copied a clandestine station at this time and frequency, although a religious broadcast is also a possibility. There's nothing listed on any of the usual SWBC listings either. I was alerted to it by a Facebook post, and tuned in to a broadcast of OM speaking Mandarin in soothing tone, with piano music in the background. There was then a song in the adult contemporary style sung by YL in Chinese, and QRT at 0500. Listened via NA5B's web SDR in the Washington DC area with a general SIO of 333. I didn't think to make a recording but will try to remember to monitor this frequency at this time.