Rebranded by Lippincott
The client news release tells the story well (for PR speak):
CEO: GLAAD President Jarrett Barrios
-- Sarah Bellamy, strategy; Jenifer Lehker, design
The new symbol, taken with the letterforms, makes another universal
symbolic allusion, to a trumpet; brilliantly appropriate. I
love that, and also the happy aacronym.
The logo inspiration - icons of amplification: