Final answer:
Wassily Kandinsky was interested in the piano and violin, using musical metaphors to describe his views on color and art. Similarly, Cubist artist Georges Braque, who also expressed interest in music, incorporated string instruments like violins in his works.
Step-by-step explanation:
Two different instruments that were of interest to Wassily Kandinsky were the piano and violin. Kandinsky, a pioneer of abstract art, was deeply influenced by music, using it as a metaphor for his work. In his own words, "Colour is the keyboard, the eyes are the hammers, the soul is the piano with many strings." Additionally, Cubist artists such as Braque frequently incorporated instruments like guitars, violins, and clarinets into their artwork. Braque's Violin and Candlestick is an example of a Cubist composition where a violin is featured prominently, a nod to Braque's interest in music and his own musicianship. Such compositions flattened space and showed multiple perspectives, similar to how Kandinsky viewed color as a way to communicate directly with the soul.