On a Field Trip (page 7)
by Carl Czerny
Description: Close rapid groups – trills
Demonstrated by Connie Luk
https://conyluk.wordpress.com
from Technic is Fun
Preparatory – Elementary B
“Selected Studies and Etudes Compiled and Edited by David Hirschberg”
2000/2004 Edition – Belwin-Mills Publishing Corp./
Alfred Publishing Co., Inc.