What are the distinguishing characteristics of the sonatina op.55 no.3 and how does it compare to other sonatinas in the same opus?

The distinguishing characteristics of Sonatina Op.55 No.3 include its lively and playful melodies, clear structure, and moderate difficulty level. Compared to other sonatinas in the same opus, it may have a more straightforward and accessible musical style, making it a popular choice for intermediate-level pianists.