*flips*Ah-Jan Ladislav Dussek composed a sonatina (guess the key..) in G major that I'm rather fond of. It has only two movements-an allegro that's kind of bland in the left hand but has a lyrical melody and a Rondo that's equally "charming."
According to this website,https://www.cdsheetmusic.com/sonateasytoc.htmlBeethoven wrote at least six. As for opus number, I haven't found any sites that say them.