Did you play all the quarter notes with your right hand in Little snare drum?

No. Snare drum Jr., also known as snare drum Jr. and tambourine, is a drum with strings. The drum head of snare drum Jr. is 35cm in diameter and 14cm in height, and consists of a wooden drum frame and a drum skin. Players of snare drum Jr. will beat drums alternately with both hands to keep the rhythm stable and even. For quarter notes, you can play them with your right hand or left hand, or you can play them alternately.