The Jeffries Duet Concertina Tutor is finally here, and only 100 years too late! Published by Rollston Press, 198 pages, available through Amazon worldwide in paperback and Kindle eBook.   It features over 80 tunes arranged for a 50-button Jeffries Duet, from super simple to ridiculously difficult, from folk to classical to British Music Hall, including many transcribed from Michael Hebbert's landmark recording The Rampin' Cat. Michael provided much help and encouragement, as did Gavin