Percussionist Mark Kuliini recently posted a video comparison of five Grover Pro tambourine models. This is an excellent, concise video that presents the sonic textural differences of some of our most popular tambourines.
Here is a time stamp to assist: 0:46 single row Beryllium Copper/Phosphorus Bronze - 1:55 Beryllium Copper - 3:04 Hybrid Silver 4:11 German Silver 5:16 Studio Pro model Phosphor Bronze/German Silver
THANKS MARK !!!