There are 4 books in The Song of Forgetfulness series.
The Song of Forgetfulness series does not have a new book coming out soon. The latest book, The Chronicles of Mayer (Book 4), was published in December 2016.
The first book in The Song of Forgetfulness series, Whisper Gatherers, was published in July 2015.
The Song of Forgetfulness series primarily falls into the Dystopian and Science Fiction genres.