The Muse of Music

From Author Wars - https://authorwars.com/publications/the-muse-of-music-604569.html

Overview:

Title: The Muse of Music
Author: Enrico Toro, David Carrico
Year: 2017
ISBN-10: 9781539923220
Publisher: Eric Flint's Ring of Fire Press
Price: $8.50
Pages: 198
Binding: Trade Paperback
Type: Collection
Title Reference: A Quick and Dirty Treatise on Historical Fencing
Notes: Print on demand.
Date and price not given; taken from Amazon.com.
Cover artist credited on the copyright page.
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.