The Muse of Music

From Author Wars - https://authorwars.com/publications/the-muse-of-music-620091.html

Overview:

Title: The Muse of Music
Author: Enrico Toro, David Carrico
Year: 2017
Publisher: Eric Flint's Ring of Fire Press
Price: $4.99
Pages: 205
Binding: ebook
Type: Collection
Title Reference: A Quick and Dirty Treatise on Historical Fencing
Notes: Information from Amazon.com as of 2017-05-30.
The stories are not credited. The first two "Letters" appear in hardcover Grantville Gazettes, allowing attribution of all of the "Letters". Since all of the stories include the same main "downtime" characters, it is likely all of the shortfiction is by Toro.