Because the two editors calling for deletion may be biased vs. woman
pianist's ethnicity, I don't know if this really is an article fit for
deletion, especially for those of us who are inclusionists.
I've taken a look at this. I'm not seeing any evidence of bias about either ethnicity or sex; I'm seeing at best a bias against low-quality sourcing in a BLP. That does not mean the subject of the article is not notable; it means that the reference sources provided aren't supporting it terribly well. My suspicion is that there might be better sources in the language spoken where she lives, or possibly in hard-copy vs online sources. Some reviews of her performances rather than just a listing might even be sufficient, but the notability threshold does not appear to have been met with the current sources.
I confess, having been one of the people who's had to deal with some pretty serious problems in BLPs, especially small ones with few devoted watchers, I wonder if Ms. Sarkissian is best served by being mentioned in the articles of her students whose notability is more easily established, rather than in a standalone article. I have to say that I'd expect some stronger sourcing specific to the subject herself rather than mentions of her in the biographies of her students; the theory that "notability isn't inherited" goes in both directions. I can assure you that my grade school piano teacher, who also taught at least three people who went on to become respected professional musicians, is not noteworthy.