Grieg - Norwegian. Very instrumental in the development of a Scandinavian style.
Dvorak - Czech. Nationalistic, used many 'flavors' from his home region in order to make his music reflect his home.
Albeniz - Spanish. Uses Spanish musical nuances to give an Iberian feel to his music.
Mussorgsky - Russian. Nationalistic. Wrote a lot of music in a Russian style that was developing during his lifetime. His piece 'Pictures at an Exhibition' looks at Russian cultural icons and uses them to inspire the music.,