Daniel Léo Simpson is a well-known American composer, born in 1959. He began learning music at Buena High School in Arizona, where he studied music theory and even wrote the school’s Alma Mater. Simpson later attended the University of Arizona, where he continued his studies and earned a master’s degree in composition. A composer is someone who writes music, and Simpson has created many pieces that have been performed around the world. One of his famous works, “Tuscaloosa Tango,” won a competition and was first performed at the University of Alabama. This piece has also been played by orchestras in Iraq and Brazil. Simpson’s “Ave Maria” was first performed in Germany, showing that his music is enjoyed internationally. He has also written music for new instruments, such as the Viola Profonda, which was invented by Gerardo Yañez. In 2012, all twenty-four of Simpson’s piano inventions were performed and recorded in Berlin. Simpson’s achievements show how music can connect people from different countries and cultures. His work helps us understand the importance of composers and the impact they can have on the world of music.