For me and for every young violinist the sound of Schubert’s sonatinas for violin and piano is very familiar.
The title “sonatinas” is sometimes used, and it is derived from the posthumous score of 1836; Schubert himself called them “sonatas.”
The diminutive form was no doubt selected because the pieces are fairly easy to play; marketing considerations perhaps also played a role here. With their typically lively, Schubertian melodies, they are among the most popular pieces ever written for piano and violin.
Here is the Dutch violinist Janine Jansen, to play this amazing music for your enjoyment: