The author, John Stump, has a web site.

and he is quoted on concertina.net:

'I am currently distributing
"The Faeries Aire and Death March"
and
"Prelude and The Last Hope in C and C# Minor"
in beautiful 11 X 17 inch sturdy laminated sets, impervious to peanutbutter & jelly sandwich fingers, or bagel&creamcheese&jelly fingers. These laminated sheets, when held firmly between the fingers and waved in the air, make a most wonderful "woop - woop - woop" accompaniment suitable for folkOrkestral or avantGarden Symphonic concerti or concertinas.

These are published in accord with John's Copyright ownership.
The price is $25 for both, plus shipping/handling . $15 each singly.

For distributors and teachers and musical directors volume discounts are negotiable.'