The missive follows Recording Academy president Neil Portnow drawing criticism for saying that women in music need to "step up" in comments backstage at last week's show, which was already under fire for its few female nominees.
While a dozen female industry execs, in a separate letter last week, called for Portnow to resign, the new letter does not.
But the women say Portnow's remarks are a reflection of "a much larger issue," indicating that his second statement last Monday, walking back his comments, was not being strong enough.
"Neil Portnow’s comments are not a reflection of being ‘inarticulate’ in a single interview. They are, unfortunately, emblematic of a much larger issue with the [National Academy of Recording Arts and Sciences] organization as a whole on the broader set of inclusion issues across all demographics," the women write.
The Grammys took place as the music industry had remained relatively untouched by the wave of sexual harassment and assault claims that swept through Hollywood and other fields. Also, just days before the Grammys, a report was released highlighting the lack of representation for music industry women.
Last week, the Recording Academy said it would be establishing an "independent task force" to identify gender bias in the organization and unconscious bias to promote women in the industry.
"I appreciate that the issue of gender bias needs to be addressed in our industry, and share in the urgency to attack it head on," Portnow said in announcing that initiative. "We as an organization, and I as its leader, pledge our commitment to doing that."
Portnow responded in a statement: "We appreciate the points raised in this letter and welcome the opportunity to work with these executives to address the issues of inclusion, representation, fairness, and diversity in our community. As we establish the details around our recently announced task force, we will seek their input and guidance."
Feb. 5, 1 p.m. Updated with Portnow statement
This article was originally published by The Hollywood Reporter.