I was extremely saddened by the news of Ms. Greenwich's passing. First became truly aware of her when I bought her album 'Let It Be Written, Let It Be Sung' in the 70s, although I knew she had co-written lots of hits..
The album included a wonderful reworking of 'Baby I Know', which she wrote for Lesley Gore.
I was fortunate enough to see the musical 'Leader Of The Pack', based on her life story, twice. Apart from being a 'juke-box' production, it actually had a back-story and both casts were superb, musically as well as theatrically.
She was clearly tough enough to fight her corner and made a career as producer and arranger as well as a songwriter. No mean feat for a woman in those less-enlightened days.

I won't trot out the list of hits as it is relatively well known.

I think she should be remembered as one of the great songwriters of her time.