A single paragraph probably tells the story: << Frank Music has struggled in the internet age, as more musicians turn to Amazon or other online sellers that sell scores for less than their brick-and-mortar counterparts charge. It has also had to compete with free downloads, found on websites such as IMSLP, a virtual music library that allows users to download scores at no cost. >> I suppose I must adjust my expectations from the recent publications -- and I hope my second oboe sonata will make Op. 8! -- accordingly.
The article can be accessed here: http://www.theguardian.com/us-news/2015/mar/06/new-york-last-classical-sheet-music-shop-closes-frank-music?CMP=share_btn_fb