"Allegro" by Rudolf Bauer is an oil on canvas work exemplifying the artist's abstract approach developed during his time at the Bauhaus and beyond. The composition employs dynamic geometric forms and a vibrant color palette to convey the musical energy suggested by its title, reflecting Bauer's interest in synesthesia and the relationship between visual art and sound. The painting demonstrates the modernist principle of translating non visual experiences into pure abstraction through formal artistic means.